Used convertible cars for sale near Buckingham
There are 392 used convertible cars for sale from UK dealers within 20 miles of Buckingham on AskCar, as of 6 November 2026. Typical asking price £19,000 (the median: half cost less, half cost more). The cheapest is £690.
The middle half of the 392 cars are priced between £9,000 and £39,000.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Buckingham
103 cars within 20 miles had their price reduced in the last 14 days to 6 November 2026. Of those priced between £1,000 and £60,000, these 8 have the biggest reductions in pounds since AskCar first saw them.
- 2025 Mercedes-Benz CLE 2.0 CLE220dh MHEV Premier Edition, 217 bhp, automatic, diesel, convertible, 2 doors, 4 seats, grey. Mileage: 4,950 miles. Price: £49,890, reduced by £7,060 from £56,950 since AskCar first saw it on 11 June 2026, 148 days ago. Above the going rate: £4,208 (9%) over the AskCar estimate of £45,682. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 Automotive Mercedes-Benz Of Oxford in Oxford, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-cle-2025-cd3e8cb6d561
- 2025 Mercedes-Benz CLE 2.0 CLE300h MHEV AMG Line Premium Plus, 277 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 19,275 miles. Price: £45,990, reduced by £5,500 from £51,490 since AskCar first saw it on 13 August 2026, 85 days ago. Fair price: £1,197 (2%) over the AskCar estimate of £44,793. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 Automotive Mercedes-Benz Of Oxford in Oxford, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-cle-2025-d94a82ce4a61
- 2021 Mercedes-Benz E Class 3.0 E53 MHEV EQ Boost AMG, 451 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 36,555 miles. Price: £29,995, reduced by £5,000 from £34,995 since AskCar first saw it on 11 August 2026, 87 days ago. Good value: £4,847 (13%) under the AskCar estimate of £34,842. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: S.M.T Automotive in Marsworth, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-e-class-2021-087677dbf2d8
- 2023 BMW M4 3.0 Competition, 502 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 7,532 miles. Price: £56,690, reduced by £4,800 from £61,490 since AskCar first saw it on 29 August 2026, 69 days ago. Fair price: £153 (under 1%) under the AskCar estimate of £56,843. Euro 6 emissions standard. ULEZ compliant. Dealer: Stratstone BMW Milton Keynes in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-9238c327a572
- 2024 Volkswagen T-Roc 1.5 TSI R Line, 148 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 18,332 miles. Price: £21,900, reduced by £3,750 from £25,650 since AskCar first saw it on 6 August 2026, 92 days ago. Good value: £2,613 (10%) under the AskCar estimate of £24,513. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Select Northampton in Northampton, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/volkswagen-t-roc-2024-543749ffbd07
- 2020 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, black. Mileage: 52,000 miles. Price: £21,780, reduced by £3,615 from £25,395 since AskCar first saw it on 22 August 2026, 76 days ago. Fair price: £390 (1%) over the AskCar estimate of £21,390. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 15 October 2026; ask the dealer for the current MOT. Dealer: MINI UK at Stratstone Milton Keynes in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-72852cef1e21
- 2021 Mercedes-Benz C Class 2.0 C220d AMG Line Night Edition Premium Plus, 191 bhp, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 32,840 miles. Price: £22,995, reduced by £3,500 from £26,495 since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £481 (2%) under the AskCar estimate of £23,476. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 March 2027. Dealer: S.M.T Automotive in Marsworth, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-c-class-2021-a317ae09876b
- 2023 BMW M4 3.0 Competition, 502 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 5,203 miles. Price: £56,450, reduced by £3,500 from £59,950 since AskCar first saw it on 30 September 2026, 37 days ago. Fair price: £1,549 (2%) under the AskCar estimate of £57,999. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 June 2027. Dealer: North Oxford Bmw in Oxford, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-bc723bf83b42
Cars for sale now, page 1 of 4
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the priced adverts of its make and model on AskCar as of 6 November 2026.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2018 Porsche 911 3.0, 364 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 28,000 miles. Price: £78,990, unchanged since AskCar first saw it on 7 July 2026, 122 days ago. Good value: £25,891 (24%) under the AskCar estimate of £104,881. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 December 2026. Dealer: GT Academy Group in Tring, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2018-f0ef3321b5d8
- 2016 Fiat 500C 0.9 TwinAir Lounge, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 10,000 miles. Price: £5,995, unchanged since AskCar first saw it on 30 September 2026, 37 days ago. Good value: £1,773 (22%) under the AskCar estimate of £7,768. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 February 2027. Dealer: Northampton Car Company in Northampton, 15 miles from Buckingham. AskCar page: https://askcar.co.uk/car/fiat-500c-2016-e51ceb547fac
- 2014 Mercedes-Benz SLK 2.1 SLK250 CDI AMG Sport, 201 bhp, automatic, diesel, convertible, 2 doors, 2 seats, black. Mileage: 82,000 miles. Price: £5,990, reduced by £900 from £6,890 since AskCar first saw it on 28 May 2026, 162 days ago. Good value: £1,699 (22%) under the AskCar estimate of £7,689. Euro 5 emissions standard. MOT: valid until 15 March 2027. Dealer: Aylesbury Motors in Aylesbury, 14 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-1405803fceeb
- 2006 Porsche Boxster 2.7 987, 240 bhp, manual, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 67,000 miles. Price: £8,497, unchanged since AskCar first saw it on 31 October 2026, 6 days ago. Good value: £2,280 (21%) under the AskCar estimate of £10,777. Euro 4 emissions standard. ULEZ compliant. Dealer: Car Kultur in Aston Sandford, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-boxster-2006-ca151a374fc8
- 2001 Lotus Elise 1.8, 120 bhp, manual, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 41,040 miles. Price: £18,750, unchanged since AskCar first saw it on 25 September 2026, 42 days ago. Good value: £4,957 (20%) under the AskCar estimate of £23,707. Dealer: Allon White Sports Cars in Cranfield, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/lotus-elise-2001-f2e621fc320d
- 2004 MINI Convertible 1.6 Cooper, 113 bhp, manual, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 45,000 miles. Price: £2,490, reduced by £500 from £2,990 since AskCar first saw it on 30 July 2026, 99 days ago. Good value: £616 (19%) under the AskCar estimate of £3,106. Euro 3 emissions standard. MOT: the latest record we hold ran out on 25 September 2026; ask the dealer for the current MOT. Dealer: Podium PCL in Hanslope, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2004-1502f68e8ca2
- 2002 Porsche 911 3.6 996, 315 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 90,000 miles. Price: £19,980, unchanged since AskCar first saw it on 21 August 2026, 77 days ago. Good value: £4,944 (19%) under the AskCar estimate of £24,924. Euro 3 emissions standard. MOT: valid until 7 July 2027. Dealer: Banbury Motors in Banbury, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2002-d1e54c7a7e44
- 2006 Porsche Boxster 2.7, 240 bhp, manual, petrol, convertible, 2 doors, 2 seats, grey. Mileage: 62,000 miles. Price: £8,995, unchanged since AskCar first saw it on 4 November 2026, 2 days ago. Good value: £2,190 (19%) under the AskCar estimate of £11,185. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 25 June 2027. Dealer: Norton Automotive in Aylesbury, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-boxster-2006-9e0c011bb1db
- 2012 Mercedes-Benz SLK 2.1 SLK250 CDI BlueEfficiency, 201 bhp, automatic, diesel, convertible, 2 doors, 2 seats, silver. Mileage: 10,000 miles. Price: £7,499, unchanged since AskCar first saw it on 22 October 2026, 15 days ago. Good value: £1,727 (18%) under the AskCar estimate of £9,226. Euro 5 emissions standard. MOT: valid until 18 November 2026. Dealer: P.S. Ponting in Banbury, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2012-66cd8a671c13
- 2018 BMW 4 Series 3.0 440i M Sport, 322 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 61,940 miles. Price: £17,775, reduced by £2,149 from £19,924 since AskCar first saw it on 28 July 2026, 101 days ago. Good value: £3,859 (17%) under the AskCar estimate of £21,634. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 26 July 2026; ask the dealer for the current MOT. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-33b668897b66
- 2010 Audi A3 Cabriolet 2.0 TDI, 138 bhp, automatic, diesel, convertible, 2 doors, 4 seats, silver. Mileage: 117,000 miles. Price: £2,695, unchanged since AskCar first saw it on 4 November 2026, 2 days ago. Good value: £576 (17%) under the AskCar estimate of £3,271. MOT: valid until 15 October 2027. Dealer: Milton Motors One in Stewkley, 9 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2010-1acde6091249
- 2008 Aston Martin DB9 5.9, 450 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 59,067 miles. Price: £25,000, unchanged since AskCar first saw it on 28 October 2026, 9 days ago. Good value: £4,947 (16%) under the AskCar estimate of £29,947. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 29 April 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/aston-martin-db9-2008-f2ff2ea6bfa2
- 2005 MINI Convertible 1.6 Cooper, 113 bhp, manual, petrol, convertible, 2 doors, 4 seats, black. Mileage: 103,000 miles. Price: £1,700, reduced by £299 from £1,999 since AskCar first saw it on 29 October 2026, 8 days ago. Good value: £317 (15%) under the AskCar estimate of £2,017. Euro 3 emissions standard. MOT: valid until 29 September 2027. Dealer: Indus Motors in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2005-1311df829f39
- 2012 Volkswagen Golf 1.4 TSI GT, 158 bhp, manual, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 105,000 miles. Price: £3,500, reduced by £500 from £4,000 since AskCar first saw it on 28 May 2026, 162 days ago. Good value: £644 (15%) under the AskCar estimate of £4,144. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 25 August 2026; ask the dealer for the current MOT. Dealer: Nene Vale Motor Company in Northampton, 15 miles from Buckingham. AskCar page: https://askcar.co.uk/car/volkswagen-golf-2012-b2d89a22c20c
- 2011 Porsche 911 3.8 997 Turbo, 500 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 30,000 miles. Price: £63,995, reduced by £3,000 from £66,995 since AskCar first saw it on 7 July 2026, 122 days ago. Good value: £11,519 (15%) under the AskCar estimate of £75,514. Euro 5 emissions standard. ULEZ compliant. Dealer: Waterways Prestige in Leighton Buzzard, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2011-1413936f4a4a
- 2026 Caterham Seven 0.7 170 R, 84 bhp, manual, petrol, convertible, 2 doors, 2 seats, red. Mileage: 1,350 miles. Price: £29,995, reduced by £1,000 from £30,995 since AskCar first saw it on 25 September 2026, 42 days ago. Good value: £5,201 (14%) under the AskCar estimate of £35,196. MOT: first test not yet due. Dealer: Woodcote and Copse in Silverstone, 5 miles from Buckingham. AskCar page: https://askcar.co.uk/car/caterham-seven-2026-b502b346f943
- 2017 MINI Convertible 2.0 John Cooper Works, 228 bhp, manual, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 85,000 miles. Price: £7,995, reduced by £1,000 from £8,995 since AskCar first saw it on 27 October 2026, 10 days ago. Good value: £1,357 (14%) under the AskCar estimate of £9,352. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 August 2027. Dealer: NSA Motor Vehicles in Milton Keynes, 8 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-b7ae5c6716d5
- 2012 Volkswagen Golf 1.4 TSI, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 65,000 miles. Price: £4,500. AskCar first saw it on 21 September 2026, 46 days ago. Good value: £750 (14%) under the AskCar estimate of £5,250. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 22 September 2026; ask the dealer for the current MOT. Dealer: Milton Motors One in Stewkley, 9 miles from Buckingham. AskCar page: https://askcar.co.uk/car/volkswagen-golf-2012-a1ec45421d33
- 2013 Mazda MX-5 2.0 Sport Tech, 158 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 39,253 miles. Price: £9,500, reduced by £500 from £10,000 since AskCar first saw it on 1 August 2026, 97 days ago. Good value: £1,578 (14%) under the AskCar estimate of £11,078. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 10 May 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2013-62c80960c202
- 2021 Mercedes-Benz E Class 3.0 E53 MHEV EQ Boost AMG, 451 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 36,555 miles. Price: £29,995, reduced by £5,000 from £34,995 since AskCar first saw it on 11 August 2026, 87 days ago. Good value: £4,847 (13%) under the AskCar estimate of £34,842. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: S.M.T Automotive in Marsworth, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-e-class-2021-087677dbf2d8
- 2023 Porsche 911 3.0, 443 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 2,800 miles. Price: £113,500, reduced by £1,500 from £115,000 since AskCar first saw it on 15 October 2026, 22 days ago. Good value: £17,969 (13%) under the AskCar estimate of £131,469. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Group Porsche Centre Silverstone in Silverstone, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2023-b3d9b6ec06c2
- 2016 BMW 2 Series 3.0 M235i, 322 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 55,000 miles. Price: £14,495, unchanged since AskCar first saw it on 3 November 2026, 3 days ago. Good value: £2,088 (12%) under the AskCar estimate of £16,583. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 February 2027. Dealer: Farm Garage in Newport Pagnell, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-2-series-2016-fa2ac614b005
- 2023 MINI Convertible 1.5 Cooper Exclusive, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 5,754 miles. Price: £19,181, reduced by £1,647 from £20,828 since AskCar first saw it on 26 October 2026, 11 days ago. Good value: £2,724 (12%) under the AskCar estimate of £21,905. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 September 2027. Dealer: Carsa Towcester in Towcester, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-7b3c47e8e61c
- 2015 MINI Convertible 1.6 Cooper, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 51,729 miles. Price: £5,650, reduced by £1,173 from £6,823 since AskCar first saw it on 4 October 2026, 33 days ago. Good value: £780 (12%) under the AskCar estimate of £6,430. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 July 2027. Dealer: Evans Halshaw BYD Milton Keynes in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2015-49548da72bf7
- 2011 Porsche 911 3.8 997 Carrera S, 385 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 24,000 miles. Price: £49,980, unchanged since AskCar first saw it on 16 October 2026, 21 days ago. Good value: £6,790 (11%) under the AskCar estimate of £56,770. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 4 March 2027. Dealer: Banbury Motors in Banbury, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2011-c553b4e5375c
- 2007 Bentley Continental 6.0 GTC, 552 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 64,968 miles. Price: £18,000, unchanged since AskCar first saw it on 28 October 2026, 9 days ago. Good value: £2,292 (11%) under the AskCar estimate of £20,292. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 14 October 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bentley-continental-2007-3481a9d160c0
- 2010 BMW 1 Series 2.0 118i M Sport, 140 bhp, manual, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 103,266 miles. Price: £2,494, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Good value: £311 (11%) under the AskCar estimate of £2,805. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 8 September 2026; ask the dealer for the current MOT. Dealer: Aylesbury Trade Centre in Aston Clinton, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-1-series-2010-afe16f54fee5
- 2017 Mazda MX-5 2.0, 158 bhp, manual, petrol, convertible, 2 doors, 2 seats, black. Mileage: 57,212 miles. Price: £10,250, reduced by £1,200 from £11,450 since AskCar first saw it on 26 September 2026, 41 days ago. Good value: £1,257 (10%) under the AskCar estimate of £11,507. Euro 6 emissions standard. ULEZ compliant. Dealer: Listers Honda Northampton in Northampton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2017-69781aa19269
- 2010 BMW 1 Series 2.0 120d SE, 174 bhp, manual, diesel, convertible, 2 doors, 4 seats, silver. Mileage: 90,000 miles. Price: £3,000, reduced by £1,200 from £4,200 since AskCar first saw it on 4 August 2026, 94 days ago. Good value: £367 (10%) under the AskCar estimate of £3,367. Euro 5 emissions standard. MOT: valid until 2 December 2026. Dealer: Indus Motors in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-1-series-2010-4b93ee005bd3
- 2024 Volkswagen T-Roc 1.5 TSI R Line, 148 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 18,332 miles. Price: £21,900, reduced by £3,750 from £25,650 since AskCar first saw it on 6 August 2026, 92 days ago. Good value: £2,613 (10%) under the AskCar estimate of £24,513. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Select Northampton in Northampton, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/volkswagen-t-roc-2024-543749ffbd07
- 2000 Jaguar XKR 4.0, 370 bhp, automatic, petrol, convertible, 2 doors. Mileage: 59,000 miles. Price: £13,495, unchanged since AskCar first saw it on 17 August 2026, 81 days ago. Good value: £1,577 (10%) under the AskCar estimate of £15,072. Dealer: select GT in Aston Clinton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/jaguar-xkr-2000-a1266d2d18e2
- 2018 MINI Convertible 1.5 Cooper, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 45,000 miles. Price: £8,995, unchanged since AskCar first saw it on 25 October 2026, 12 days ago. Good value: £1,023 (10%) under the AskCar estimate of £10,018. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 31 July 2027. Dealer: MK Car Sales in Milton Keynes, 15 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2018-2d3fa814c469
- 2017 Porsche 911 3.0, automatic, petrol, convertible, 2 doors, 4 seats. Mileage: 9,500 miles. Price: £76,995, unchanged since AskCar first saw it on 17 August 2026, 81 days ago. Good value: £8,632 (10%) under the AskCar estimate of £85,627. Euro 6 emissions standard. ULEZ compliant. Dealer: select GT in Aston Clinton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2017-7da7e5b47a66
- 2018 Porsche 718 Boxster 2.0, 296 bhp, automatic, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 32,547 miles. Price: £37,500, reduced by £1,498 from £38,998 since AskCar first saw it on 8 October 2026, 29 days ago. Good value: £4,133 (9%) under the AskCar estimate of £41,633. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 June 2027. Dealer: Carherts in Aylesbury, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-718-boxster-2018-4f83334dd24b
- 2023 Porsche 911 3.0, 443 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 6,100 miles. Price: £116,000, unchanged since AskCar first saw it on 29 September 2026, 38 days ago. Good value: £12,624 (9%) under the AskCar estimate of £128,624. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 31 March 2027. Dealer: Sytner Group Porsche Centre Silverstone in Silverstone, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2023-5b384af7ffef
- 2015 Mercedes-Benz SLK 5.5 SLK55 V8 AMG, 415 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 24,000 miles. Price: £29,995, reduced by £2,000 from £31,995 since AskCar first saw it on 21 August 2026, 77 days ago. Good value: £3,025 (9%) under the AskCar estimate of £33,020. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 10 September 2026; ask the dealer for the current MOT. Dealer: SKS Cars in Milton Keynes, 7 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2015-be6dab604947
- 2023 Morgan Plus Four 2.0, 254 bhp, automatic, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 5,650 miles. Price: £59,900, unchanged since AskCar first saw it on 25 September 2026, 42 days ago. Good value: £5,963 (9%) under the AskCar estimate of £65,863. Euro 6 emissions standard. ULEZ compliant. Dealer: Woodcote and Copse in Silverstone, 5 miles from Buckingham. AskCar page: https://askcar.co.uk/car/morgan-plus-four-2023-4b78487e07b1
- 2022 BMW 4 Series 3.0 M440d MHT, 335 bhp, automatic, diesel, convertible, 2 doors, 4 seats, green. Mileage: 39,483 miles. Price: £29,950, reduced by £2,000 from £31,950 since AskCar first saw it on 4 November 2026, 2 days ago. Good value: £2,953 (8%) under the AskCar estimate of £32,903. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 July 2027. Dealer: North Oxford Bmw in Oxford, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-c319662359e4
- 2014 Mercedes-Benz SLK 2.1 SLK250 CDI AMG Sport, 201 bhp, automatic, diesel, convertible, 2 doors, 2 seats, white. Mileage: 93,000 miles. Price: £6,490, reduced by £1,000 from £7,490 since AskCar first saw it on 28 May 2026, 162 days ago. Good value: £589 (8%) under the AskCar estimate of £7,079. Euro 5 emissions standard. MOT: valid until 22 April 2027. Dealer: Prestigio Cars in Bedford, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slk-2014-cacf7c4e0c8e
- 2024 Caterham Seven 2.0 420 R, 210 bhp, manual, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 1,450 miles. Price: £39,995, reduced by £2,000 from £41,995 since AskCar first saw it on 4 October 2026, 33 days ago. Good value: £3,538 (8%) under the AskCar estimate of £43,533. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 April 2027. Dealer: Woodcote and Copse in Silverstone, 5 miles from Buckingham. AskCar page: https://askcar.co.uk/car/caterham-seven-2024-910511611307
- 2021 Porsche 911 3.0, 443 bhp, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 17,900 miles. Price: £106,000, unchanged since AskCar first saw it on 29 October 2026, 8 days ago. Good value: £9,349 (8%) under the AskCar estimate of £115,349. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 November 2026. Dealer: Sytner Group Porsche Centre Silverstone in Silverstone, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2021-80c07829b120
- 2019 BMW M4 3.0 Competition, 443 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 24,820 miles. Price: £34,450, reduced by £500 from £34,950 since AskCar first saw it on 10 October 2026, 27 days ago. Good value: £3,028 (8%) under the AskCar estimate of £37,478. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 July 2027. Dealer: Wollaston BMW in Wollaston, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-m4-2019-5de500175581
- 2019 Mazda MX-5 RF 1.5 Sport Nav+, 130 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 34,757 miles. Price: £13,950, reduced by £1,600 from £15,550 since AskCar first saw it on 7 September 2026, 60 days ago. Good value: £1,216 (8%) under the AskCar estimate of £15,166. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 December 2026. Dealer: Invicta Northampton in Northampton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-rf-2019-4d8496978c88
- 2008 Mazda MX-5 2.0 Sport, 158 bhp, manual, petrol, convertible, 2 doors, 2 seats, grey. Mileage: 68,790 miles. Price: £4,295, unchanged since AskCar first saw it on 27 October 2026, 10 days ago. Fair price: £373 (7%) under the AskCar estimate of £4,668. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 16 April 2027. Dealer: Lodge Garage Mazda in Aylesbury, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2008-18cc7f82ae99
- 2012 Audi TT 2.0 TFSI S Line, 208 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 84,000 miles. Price: £6,790, reduced by £1,200 from £7,990 since AskCar first saw it on 30 May 2026, 160 days ago. Fair price: £588 (7%) under the AskCar estimate of £7,378. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 15 October 2026; ask the dealer for the current MOT. Dealer: ESP Cars Milton Keynes in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-tt-2012-50897650a6c8
- 2017 Mercedes-Benz SLC 2.1 SLC250d AMG Line, 201 bhp, automatic, diesel, convertible, 2 doors, 2 seats, white. Mileage: 47,577 miles. Price: £14,430, reduced by £1,710 from £16,140 since AskCar first saw it on 8 August 2026, 90 days ago. Fair price: £1,239 (7%) under the AskCar estimate of £15,669. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 6 October 2026; ask the dealer for the current MOT. Dealer: Evans Halshaw Hyundai Milton Keynes in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-slc-2017-f9ca5457930d
- 2009 Audi A3 Cabriolet 2.0 TFSI S Line, 197 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 65,000 miles. Price: £4,990, reduced by £500 from £5,490 since AskCar first saw it on 26 August 2026, 72 days ago. Fair price: £415 (7%) under the AskCar estimate of £5,405. Euro 4 emissions standard. ULEZ compliant. MOT: valid until 10 June 2027. Dealer: Auto Globe in Milton Keynes, 9 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2009-b0cd4a8e5211
- 2016 Mazda MX-5 1.5 SKYACTIV-G Sport NAV, 129 bhp, manual, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 39,859 miles. Price: £11,500, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £940 (7%) under the AskCar estimate of £12,440. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 March 2027. Dealer: Northampton Motors in Northampton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2016-01c89519792e
- 2011 Audi A3 Cabriolet 1.2 TFSI Sport, 104 bhp, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 75,402 miles. Price: £4,000, unchanged since AskCar first saw it on 1 November 2026, 5 days ago. Fair price: £316 (7%) under the AskCar estimate of £4,316. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 2 September 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2011-f39c2673d0e1
- 2015 BMW 4 Series 2.0 428i M Sport, 242 bhp, automatic, petrol, convertible, 2 doors, 4 seats, red. Mileage: 56,000 miles. Price: £11,995, unchanged since AskCar first saw it on 16 October 2026, 21 days ago. Fair price: £926 (7%) under the AskCar estimate of £12,921. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 October 2027. Dealer: Norton Automotive in Aylesbury, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-121cae6a177a
- 2016 Audi A3 Cabriolet 1.4 TFSI CoD S Line, 148 bhp, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 52,753 miles. Price: £11,300, reduced by £1,230 from £12,530 since AskCar first saw it on 18 August 2026, 80 days ago. Fair price: £868 (7%) under the AskCar estimate of £12,168. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 7 October 2026; ask the dealer for the current MOT. Dealer: Evans Halshaw BYD Milton Keynes in Milton Keynes, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a3-cabriolet-2016-784872e63032
- 2013 MINI Roadster 1.6 Cooper, 120 bhp, manual, petrol, convertible, 2 doors, 2 seats, black. Mileage: 33,504 miles. Price: £5,490, unchanged since AskCar first saw it on 19 October 2026, 18 days ago. Fair price: £418 (7%) under the AskCar estimate of £5,908. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 October 2027. Dealer: Cars in MK in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-roadster-2013-25520d6aab11
- 1998 Morgan Plus Four 2.0, 136 bhp, manual, petrol, convertible, 2 doors, green. Mileage: 40,070 miles. Price: £19,995, reduced by £1,955 from £21,950 since AskCar first saw it on 25 September 2026, 42 days ago. Fair price: £1,471 (6%) under the AskCar estimate of £21,466. Euro 1 emissions standard. Dealer: Allon White Sports Cars in Cranfield, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/morgan-plus-four-1998-990c6e211fd9
- 2026 Ford Mustang 5.0 V8 GT, 439 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 4,383 miles. Price: £53,999, unchanged since AskCar first saw it on 3 October 2026, 34 days ago. Fair price: £3,920 (6%) under the AskCar estimate of £57,919. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Evans Halshaw Ford Milton Keynes in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/ford-mustang-2026-a067e0dcfb0a
- 2016 Ford Mustang 2.3 EcoBoost, 313 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 48,300 miles. Price: £21,000, unchanged since AskCar first saw it on 14 October 2026, 23 days ago. Fair price: £1,501 (6%) under the AskCar estimate of £22,501. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 October 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/ford-mustang-2016-b7bd85ce7588
- 2015 Lotus Elise 1.8 S CR, 217 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 13,000 miles. Price: £33,995, raised by £1,000 from £32,995 since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £2,327 (6%) under the AskCar estimate of £36,322. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 1 June 2027. Dealer: Waterways Prestige in Leighton Buzzard, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/lotus-elise-2015-97de8c41397e
- 2013 MINI Convertible 1.6 ONE, 96 bhp, manual, petrol, convertible, 2 doors, 4 seats, brown. Mileage: 79,511 miles. Price: £3,599, unchanged since AskCar first saw it on 31 October 2026, 6 days ago. Fair price: £239 (6%) under the AskCar estimate of £3,838. Euro 6 emissions standard. ULEZ compliant. Dealer: John Autos in Leighton Buzzard, 15 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2013-326673237bf4
- 2013 BMW 3 Series 3.0 Sport Plus Edition, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 91,440 miles. Price: £6,590, unchanged since AskCar first saw it on 4 November 2026, 2 days ago. Fair price: £438 (6%) under the AskCar estimate of £7,028. Euro 5 emissions standard. MOT: valid until 23 October 2027. Dealer: Kennington Car Sales in Bletchley, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2013-ccd57eaf3e74
- 2023 MINI Convertible 2.0 John Cooper Works, 227 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 7,521 miles. Price: £24,950, unchanged since AskCar first saw it on 15 September 2026, 52 days ago. Fair price: £1,635 (6%) under the AskCar estimate of £26,585. Euro 6 emissions standard. ULEZ compliant. Dealer: Wollaston Mini in Wollaston, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2023-3e8f664eaef0
- 2017 MINI Convertible 1.5 Cooper, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 57,660 miles. Price: £8,200, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £513 (5%) under the AskCar estimate of £8,713. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 April 2027. Dealer: MK Prestige Carz in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-ef8a633812ab
- 2017 MINI Convertible 2.0 Cooper S, 189 bhp, manual, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 47,365 miles. Price: £9,999, unchanged since AskCar first saw it on 24 October 2026, 13 days ago. Fair price: £625 (5%) under the AskCar estimate of £10,624. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 September 2027. Dealer: Maple Leaf Garage in Daventry, 20 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-777f45c4bdad
- 2016 MINI Convertible 2.0 Cooper S, 189 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 27,707 miles. Price: £11,994, reduced by £780 from £12,774 since AskCar first saw it on 9 July 2026, 120 days ago. Fair price: £732 (5%) under the AskCar estimate of £12,726. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 June 2027. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2016-2c18c061d044
- 2013 Volkswagen Eos 2.0 TDI BlueMotion Tech Sport, 138 bhp, automatic, diesel, convertible, 2 doors, 4 seats, silver. Mileage: 82,500 miles. Price: £5,490, reduced by £500 from £5,990 since AskCar first saw it on 12 June 2026, 147 days ago. Fair price: £332 (5%) under the AskCar estimate of £5,822. Euro 5 emissions standard. MOT: valid until 12 June 2027. Dealer: Prestigio Cars in Bedford, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/volkswagen-eos-2013-5a97637fc73f
- 2015 BMW 4 Series 2.0 420d M Sport, 181 bhp, manual, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 130,500 miles. Price: £6,750, reduced by £245 from £6,995 since AskCar first saw it on 22 September 2026, 45 days ago. Fair price: £342 (4%) under the AskCar estimate of £7,092. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: Auto Pulse in Milton Keynes, 7 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-68544a0d2c3e
- 2014 Mercedes-Benz SL 3.5 SL350 AMG Sport, 302 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 63,000 miles. Price: £16,995, reduced by £1,000 from £17,995 since AskCar first saw it on 21 July 2026, 108 days ago. Fair price: £854 (4%) under the AskCar estimate of £17,849. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 2 October 2026; ask the dealer for the current MOT. Dealer: Hampton Car Sales in Milton Malsor, 14 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2014-9f315f7358bc
- 2022 Porsche 718 Spyder 4.0, 414 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 9,300 miles. Price: £87,000, reduced by £1,500 from £88,500 since AskCar first saw it on 30 September 2026, 37 days ago. Fair price: £4,283 (4%) under the AskCar estimate of £91,283. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Group Porsche Centre Silverstone in Silverstone, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-718-spyder-2022-c9ca47a3c355
- 2014 Audi A5 Cabriolet 2.0 TDI S Line Special Edition, manual, diesel, convertible, 2 doors, 4 seats, red. Mileage: 60,000 miles. Price: £7,990, reduced by £500 from £8,490 since AskCar first saw it on 20 August 2026, 78 days ago. Fair price: £392 (4%) under the AskCar estimate of £8,382. Euro 5 emissions standard. MOT: valid until 31 July 2027. Dealer: Podium PCL in Hanslope, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/audi-a5-cabriolet-2014-6efd559935c7
- 2016 Mercedes-Benz E Class 3.0, 254 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 53,000 miles. Price: £13,795, unchanged since AskCar first saw it on 9 October 2026, 28 days ago. Fair price: £673 (4%) under the AskCar estimate of £14,468. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 23 April 2027. Dealer: Ideal Cars in Northampton, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-e-class-2016-175e3b1431df
- 2016 BMW Z4 2.0 28i M Sport, 242 bhp, automatic, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 66,248 miles. Price: £13,500, reduced by £950 from £14,450 since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £650 (4%) under the AskCar estimate of £14,150. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 March 2027. Dealer: Carherts in Aylesbury, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-z4-2016-78db2a28edd8
- 2004 Porsche 911 3.6 996 Turbo, 414 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 64,739 miles. Price: £39,500, unchanged since AskCar first saw it on 28 October 2026, 9 days ago. Fair price: £1,896 (4%) under the AskCar estimate of £41,396. Euro 3 emissions standard. MOT: valid until 5 June 2027. Dealer: Praters in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2004-0f8fc09dc3d8
- 2021 Mazda MX-5 1.5 SKYACTIV-G Sport, 130 bhp, manual, petrol, convertible, 2 doors, 2 seats, grey. Mileage: 19,000 miles. Price: £17,000, reduced by £1,575 from £18,575 since AskCar first saw it on 8 August 2026, 90 days ago. Fair price: £801 (4%) under the AskCar estimate of £17,801. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 14 August 2026; ask the dealer for the current MOT. Dealer: Kallenhard in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2021-21f53006a0da
- 2024 MINI Convertible 1.5, 134 bhp, automatic, petrol, convertible, 2 doors, 4 seats, red. Mileage: 26,500 miles. Price: £18,745, reduced by £619 from £19,364 since AskCar first saw it on 12 October 2026, 25 days ago. Fair price: £871 (4%) under the AskCar estimate of £19,616. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-3caca52d75f7
- 2004 Porsche 911 3.6 996 Carrera 4S, 315 bhp, manual, petrol, convertible, 2 doors, 4 seats, yellow. Mileage: 65,000 miles. Price: £29,999, unchanged since AskCar first saw it on 5 June 2026, 154 days ago. Fair price: £1,344 (4%) under the AskCar estimate of £31,343. Euro 3 emissions standard. Dealer: Waterways Prestige in Leighton Buzzard, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2004-d7b02783feae
- 2014 Fiat 500C 1.2, 69 bhp, manual, petrol, convertible, 2 doors, 4 seats, black. Mileage: 50,764 miles. Price: £4,790, unchanged since AskCar first saw it on 22 August 2026, 76 days ago. Fair price: £211 (4%) under the AskCar estimate of £5,001. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 February 2027. Dealer: MK Auto-Motors in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/fiat-500c-2014-c1b37d5a724a
- 2020 Porsche 911 3.0 992 Carrera S, 444 bhp, automatic, petrol, convertible, 2 doors, 4 seats, silver. Mileage: 26,750 miles. Price: £81,995, reduced by £3,000 from £84,995 since AskCar first saw it on 17 June 2026, 142 days ago. Fair price: £3,574 (4%) under the AskCar estimate of £85,569. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 1 July 2026; ask the dealer for the current MOT. Dealer: Hampton Car Sales in Milton Malsor, 14 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-911-2020-e882b3a55cc7
- 2019 BMW M4 3.0 Competition, 443 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 21,500 miles. Price: £36,497, reduced by £498 from £36,995 since AskCar first saw it on 25 September 2026, 42 days ago. Fair price: £1,507 (3%) under the AskCar estimate of £38,004. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 September 2027. Dealer: Car Kultur in Aston Sandford, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-m4-2019-d4311b5c47df
- 2017 MINI Convertible 1.5 Cooper, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 61,123 miles. Price: £8,168, reduced by £1,000 from £9,168 since AskCar first saw it on 15 October 2026, 22 days ago. Fair price: £334 (3%) under the AskCar estimate of £8,502. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 September 2027. Dealer: Eden Approved Bicester in Bicester, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-cdb1d91fefe7
- 2012 BMW Z4 2.0, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 60,220 miles. Price: £8,900, unchanged since AskCar first saw it on 23 October 2026, 14 days ago. Fair price: £362 (3%) under the AskCar estimate of £9,262. MOT: valid until 4 September 2027. Dealer: Japan Car Imports UK in Northampton, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-z4-2012-bcb9abe5c5ea
- 2024 MINI Convertible 2.0 Cooper S Sport, 176 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 18,706 miles. Price: £21,999, reduced by £1,700 from £23,699 since AskCar first saw it on 31 July 2026, 98 days ago. Fair price: £894 (3%) under the AskCar estimate of £22,893. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: N.m.j. Motorhouse in Milton Keynes, 7 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2024-9e8c917190d9
- 2017 Mazda MX-5 1.5 SKYACTIV-G SE L NAV, 129 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 51,620 miles. Price: £11,100, reduced by £1,200 from £12,300 since AskCar first saw it on 5 September 2026, 62 days ago. Fair price: £449 (3%) under the AskCar estimate of £11,549. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 August 2027. Dealer: Marshall SKODA Milton Keynes in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2017-8042b6095a07
- 2022 Aston Martin Vantage 4.0 V8, 503 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 13,933 miles. Price: £95,950, reduced by £2,000 from £97,950 since AskCar first saw it on 28 October 2026, 9 days ago. Fair price: £3,877 (3%) under the AskCar estimate of £99,827. Euro 6 emissions standard. ULEZ compliant. Dealer: Aston Martin Works in Newport Pagnell, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/aston-martin-vantage-2022-ec2d83ad5a85
- 2014 Mercedes-Benz E Class 3.0 E350d V6 BlueTEC AMG Sport, 249 bhp, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 74,445 miles. Price: £9,295, reduced by £200 from £9,495 since AskCar first saw it on 12 October 2026, 25 days ago. Fair price: £373 (3%) under the AskCar estimate of £9,668. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 December 2026. Dealer: N S Motors in Northampton, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-e-class-2014-43d0ba68f720
- 2019 BMW Z4 3.0 M40i First Edition, 335 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 40,197 miles. Price: £28,995, unchanged since AskCar first saw it on 8 October 2026, 29 days ago. Fair price: £1,090 (3%) under the AskCar estimate of £30,085. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 June 2027. Dealer: Hampton Car Sales in Milton Malsor, 14 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-z4-2019-a53ebdae0a4a
- 2022 Mazda MX-5 1.5 SKYACTIV-G SE L, 130 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 43,850 miles. Price: £14,699, reduced by £750 from £15,449 since AskCar first saw it on 22 September 2026, 45 days ago. Fair price: £550 (3%) under the AskCar estimate of £15,249. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 February 2027. Dealer: Hartwell Kidlington in Kidlington, 18 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-2022-96adb3235c4e
- 2019 Mazda MX-5 RF 1.5 Sport Nav+, 130 bhp, manual, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 25,506 miles. Price: £15,574, unchanged since AskCar first saw it on 6 November 2026. Fair price: £553 (3%) under the AskCar estimate of £16,127. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 February 2027. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mazda-mx-5-rf-2019-fb6fc6cd12f9
- 2020 McLaren 720S 4.0 T V8 Performance, 710 bhp, automatic, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 22,000 miles. Price: £154,995, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £5,467 (3%) under the AskCar estimate of £160,462. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 July 2027. Dealer: Waterways Prestige in Leighton Buzzard, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mclaren-720s-2020-28f5a55795ff
- 2009 Jaguar XK 5.0 V8 Portfolio, 380 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 54,236 miles. Price: £15,495, unchanged since AskCar first saw it on 17 October 2026, 20 days ago. Fair price: £546 (3%) under the AskCar estimate of £16,041. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 24 August 2027. Dealer: Paul Riley Cars in Towcester, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/jaguar-xk-2009-2a2a36afc31a
- 2021 Abarth 595 1.4 T-Jet Competizione, manual, petrol, convertible, 2 doors, 4 seats, black. Mileage: 34,003 miles. Price: £13,750, reduced by £1,350 from £15,100 since AskCar first saw it on 2 September 2026, 65 days ago. Fair price: £482 (3%) under the AskCar estimate of £14,232. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 June 2027. Dealer: Sytner Select Northampton in Northampton, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/abarth-595-2021-618a36c1f1c0
- 2018 BMW 2 Series 2.0 220d M Sport, 187 bhp, automatic, diesel, convertible, 2 doors, 4 seats, grey. Mileage: 36,000 miles. Price: £15,250, reduced by £1,100 from £16,350 since AskCar first saw it on 16 August 2026, 82 days ago. Fair price: £516 (3%) under the AskCar estimate of £15,766. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 June 2027. Dealer: Kallenhard in Leighton Buzzard, 16 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-2-series-2018-2d5647ed8d7f
- 2022 Porsche 718 Spyder 4.0, 414 bhp, manual, petrol, convertible, 2 doors, 2 seats, silver. Mileage: 9,379 miles. Price: £87,000, reduced by £1,500 from £88,500 since AskCar first saw it on 10 October 2026, 27 days ago. Fair price: £2,921 (3%) under the AskCar estimate of £89,921. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 March 2027. Dealer: Sytner Group Porsche Centre Silverstone in Silverstone, 10 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-718-spyder-2022-55a5828f78c7
- 2020 Porsche 718 Spyder 4.0, 414 bhp, manual, petrol, convertible, 2 doors, 2 seats, white. Mileage: 21,600 miles. Price: £77,995, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £2,618 (3%) under the AskCar estimate of £80,613. Euro 6 emissions standard. ULEZ compliant. Dealer: RPM Technik in Tring, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-718-spyder-2020-fdd2e6578943
- 2018 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 31,349 miles. Price: £15,760, reduced by £665 from £16,425 since AskCar first saw it on 19 October 2026, 18 days ago. Fair price: £516 (3%) under the AskCar estimate of £16,276. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 May 2027. Dealer: Evans Halshaw Hyundai Milton Keynes in Milton Keynes, 13 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-be535ca78988
- 2017 MINI Convertible 1.5 Cooper, 134 bhp, manual, petrol, convertible, 2 doors, 4 seats, red. Mileage: 25,678 miles. Price: £10,350, reduced by £640 from £10,990 since AskCar first saw it on 8 October 2026, 29 days ago. Fair price: £337 (3%) under the AskCar estimate of £10,687. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 March 2027. Dealer: Regency Automotive in Leighton Buzzard, 17 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-9616d88c8f71
- 2011 MINI Convertible 1.6 Cooper D, 110 bhp, manual, diesel, convertible, 2 doors, 4 seats, white. Mileage: 74,000 miles. Price: £3,490, unchanged since AskCar first saw it on 28 May 2026, 162 days ago. Fair price: £107 (2%) under the AskCar estimate of £3,597. Euro 5 emissions standard. MOT: valid until 8 March 2027. Dealer: Winslow Motor in Winslow, 6 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2011-1d26b734970d
- 2015 BMW 2 Series 2.0 220d M Sport, 187 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 83,121 miles. Price: £8,995. AskCar first saw it on 29 July 2026, 100 days ago. Fair price: £268 (2%) under the AskCar estimate of £9,263. Euro 6 emissions standard. ULEZ compliant. Dealer: Xtreme Motors in Oxford, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-2-series-2015-46d920d51b6d
- 2017 Mercedes-Benz SL 3.0 SL400 V6 AMG Line, 362 bhp, automatic, petrol, convertible, 2 doors, 2 seats, black. Mileage: 46,000 miles. Price: £29,995, unchanged since AskCar first saw it on 5 June 2026, 154 days ago. Fair price: £862 (2%) under the AskCar estimate of £30,857. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 January 2027. Dealer: SKS Cars in Milton Keynes, 7 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-sl-2017-220378410fff
- 2006 Porsche Boxster 2.7 987, 240 bhp, manual, petrol, convertible, 2 doors, 2 seats, blue. Mileage: 72,677 miles. Price: £9,990, reduced by £2,000 from £11,990 since AskCar first saw it on 20 July 2026, 109 days ago. Fair price: £285 (2%) under the AskCar estimate of £10,275. Euro 4 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 3 October 2026; ask the dealer for the current MOT. Dealer: Zachary Luke Cars in Northampton, 12 miles from Buckingham. AskCar page: https://askcar.co.uk/car/porsche-boxster-2006-7b93c4b6021a
- 2011 BMW Z4 2.5 23i M Sport, 201 bhp, manual, petrol, convertible, 2 doors, 2 seats, grey. Mileage: 50,000 miles. Price: £10,999, reduced by £951 from £11,950 since AskCar first saw it on 30 July 2026, 99 days ago. Fair price: £302 (2%) under the AskCar estimate of £11,301. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 26 February 2027. Dealer: Mhc Cars in Newton Purcell, 5 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-z4-2011-d2afda2a220d
- 2023 BMW M4 3.0 Competition, 502 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 5,203 miles. Price: £56,450, reduced by £3,500 from £59,950 since AskCar first saw it on 30 September 2026, 37 days ago. Fair price: £1,549 (2%) under the AskCar estimate of £57,999. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 June 2027. Dealer: North Oxford Bmw in Oxford, 19 miles from Buckingham. AskCar page: https://askcar.co.uk/car/bmw-m4-2023-bc723bf83b42
- 2017 MINI Convertible 2.0 Cooper S, 189 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 23,357 miles. Price: £13,574, unchanged since AskCar first saw it on 28 October 2026, 9 days ago. Fair price: £361 (2%) under the AskCar estimate of £13,935. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 December 2026. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes, 11 miles from Buckingham. AskCar page: https://askcar.co.uk/car/mini-convertible-2017-863ce42b2b27
Convertible cars across the UK by price
- Under £2,000 (165 cars)
- Under £3,000 (515 cars)
- Under £5,000 (1,355 cars)
- Under £8,000 (2,630 cars)
- Under £10,000 (3,610 cars)
- Under £15,000 (5,624 cars)
- Under £20,000 (7,296 cars)
- Under £30,000 (9,115 cars)
Popular models near Buckingham
- Nissan Qashqai (261 cars)
- Vauxhall Corsa (235 cars)
- Ford Fiesta (229 cars)
- Mercedes-Benz A Class (206 cars)
- Volkswagen Polo (201 cars)
- Volkswagen Golf (197 cars)
- Nissan Juke (183 cars)
- Ford Transit Custom (182 vans)
- Audi A3 (181 cars)
- Ford Kuga (172 cars)
- Ford Focus (171 cars)
- Kia Sportage (168 cars)
- BMW 1 Series (138 cars)
- Mercedes-Benz C Class (135 cars)
- Ford Puma (131 cars)
- Land Rover Range Rover Evoque (131 cars)
- BMW 3 Series (122 cars)
- Audi A1 (117 cars)
- Fiat 500 (117 cars)
- Toyota Yaris (115 cars)
- Vauxhall Mokka (112 cars)
- Hyundai TUCSON (109 cars)
- Peugeot 2008 (108 cars)
- Toyota C-HR (103 cars)
- Volkswagen Tiguan (103 cars)
Used cars and vans near Buckingham by price
- All used cars and vans near Buckingham
- Under £2,000 (174 cars and vans)
- Under £3,000 (517 cars and vans)
- Under £5,000 (1,506 cars and vans)
- Under £8,000 (2,898 cars and vans)
- Under £10,000 (3,926 cars and vans)
- Under £15,000 (6,436 cars and vans)
- Under £20,000 (8,636 cars and vans)
- Under £30,000 (11,211 cars and vans)
Nearby towns
- Used cars and vans near Bicester
- Used cars and vans near Milton Keynes
- Used cars and vans near Leighton Buzzard
- Used cars and vans near Aylesbury
- Used cars and vans near Banbury
- Used cars and vans near Thame
- Used cars and vans near Northampton
- Used cars and vans near Daventry
- Used cars and vans near Oxford
- Used cars and vans near Berkhamsted