Used MG MG3 3FORM Sport prices
There are 27 used MG MG3 3FORM Sport cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £3,500 (the median: half cost less, half cost more). The cheapest is £1,990. The middle half are priced between £3,000 and £5,000.
Dealers lowered the asking price on more than a quarter of MG MG3 3FORM Sport cars: 7 of the 27 in the 14 days to 9 November 2026.
AskCar lists 1,859 used MG MG3 across the UK, from 644 dealerships.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
MG MG3 3FORM Sport cars for sale now, page 1 of 2
This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 25 of the 26 cars listed here meet these rules. Page 2 lists every other MG MG3 3FORM Sport car, cheapest first, including the one the groups do not pick from.
The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,803 priced MG MG3 adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every MG MG3 3FORM Sport.
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 and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.
This list leaves out 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.
Best value MG MG3 3FORM Sport: priced furthest below the AskCar estimate
These 10 are priced 2% to 19% under their AskCar estimate. Their asking prices run from £2,494 to £4,490.
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, silver. Mileage: 42,152 miles. Price: £2,990, reduced by £500 from £3,490 since AskCar first saw it on 10 September 2026, 60 days ago. Good value: £717 (19%) under the AskCar estimate of £3,707. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 17 February 2027. Dealer: Summit Automotive in Huddersfield. AskCar page: https://askcar.co.uk/car/mg-mg3-2015-c5e963557231
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, yellow. Mileage: 82,700 miles. Price: £3,000, reduced by £500 from £3,500 since AskCar first saw it on 29 September 2026, 41 days ago. Good value: £545 (15%) under the AskCar estimate of £3,545. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 May 2027. Dealer: NU2U Cars in Stowmarket. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-b3050c10c197
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, red. Mileage: 50,425 miles. Price: £3,793, reduced by £200 from £3,993 since AskCar first saw it on 16 October 2026, 24 days ago. Good value: £662 (14%) under the AskCar estimate of £4,455. Euro 6 emissions standard. ULEZ compliant. Dealer: Novara in Glossop. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-2c9e9af2cb86
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, silver. Mileage: 68,048 miles. Price: £3,494, unchanged since AskCar first saw it on 3 July 2026, 129 days ago. Good value: £468 (11%) under the AskCar estimate of £3,962. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 April 2027. Dealer: Motor Buying Group in Whiteley. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-42168e4ea05f
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, silver. Mileage: 96,000 miles. Price: £2,494, unchanged since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £325 (11%) under the AskCar estimate of £2,819. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 May 2027. Dealer: Prime London Motors in Staines. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-1345006d1355
- 2017 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 71,000 miles. Price: £3,195, reduced by £500 from £3,695 since AskCar first saw it on 20 October 2026, 20 days ago. Good value: £403 (11%) under the AskCar estimate of £3,598. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 October 2027. Dealer: Kent Car Centre in Sittingbourne. AskCar page: https://askcar.co.uk/car/mg-mg3-2017-e5f258a51030
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 62,367 miles. Price: £3,240, reduced by £250 from £3,490 since AskCar first saw it on 16 October 2026, 24 days ago. Good value: £400 (10%) under the AskCar estimate of £3,640. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 October 2027. Dealer: G.A.P Autos in Basildon. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-f79f10a5d42b
- 2014 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 68,219 miles. Price: £2,500, reduced by £995 from £3,495 since AskCar first saw it on 18 September 2026, 52 days ago. Good value: £248 (9%) under the AskCar estimate of £2,748. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 3 June 2027. Dealer: Victoria Garage Whitchurch in Whitchurch. AskCar page: https://askcar.co.uk/car/mg-mg3-2014-82822c6511c3
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 43,948 miles. Price: £4,490, unchanged since AskCar first saw it on 11 October 2026, 29 days ago. Fair price: £137 (2%) under the AskCar estimate of £4,627. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 October 2027. Dealer: 4Kay Motors in Heywood. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-6048f2c649a4
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 45,841 miles. Price: £4,450, reduced by £300 from £4,750 since AskCar first saw it on 25 October 2026, 15 days ago. Fair price: £126 (2%) under the AskCar estimate of £4,576. Euro 6 emissions standard. ULEZ compliant. Dealer: Nigel Geoffrey in Chesterfield. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-87e0aa926089
Cheapest MG MG3 3FORM Sport: the lowest asking prices
These 10 are priced £2,494 to £3,400. They have covered 42,152 to 96,000 miles.
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,494, 96,000 miles. Listed in full under best value.
- 2014 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, red. Mileage: 79,000 miles. Price: £2,499, unchanged since AskCar first saw it on 12 October 2026, 28 days ago. Fair price: £33 (1%) under the AskCar estimate of £2,532. Euro 5 emissions standard. ULEZ compliant. MOT: valid until 30 March 2027. Dealer: KRK Motors in Penkridge. AskCar page: https://askcar.co.uk/car/mg-mg3-2014-be276b96ae42
- 2014 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,500, 68,219 miles. Listed in full under best value.
- 2014 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 81,650 miles. Price: £2,675, unchanged since AskCar first saw it on 17 July 2026, 115 days ago. Fair price: £193 (7%) over the AskCar estimate of £2,482. Euro 5 emissions standard. ULEZ compliant. Dealer: 1st Gear Motors North East in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/mg-mg3-2014-21b3d01bf833
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 92,557 miles. Price: £2,895, unchanged since AskCar first saw it on 6 November 2026, 3 days ago. Fair price: £1 (under 1%) over the AskCar estimate of £2,894. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 November 2027. Dealer: UNI Carz in Rotherham. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-464ee899e1ea
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,990, 42,152 miles. Listed in full under best value.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,000, 82,700 miles. Listed in full under best value.
- 2017 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,195, 71,000 miles. Listed in full under best value.
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,240, 62,367 miles. Listed in full under best value.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, silver. Mileage: 85,500 miles. Price: £3,400, unchanged since AskCar first saw it on 8 November 2026, 1 day ago. Fair price: £70 (2%) under the AskCar estimate of £3,470. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 March 2027. Dealer: Your Car Zone in Ashford. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-b95e9e1031b8
Lowest-mileage MG MG3 3FORM Sport
These 10 have covered 14,000 to 42,152 miles. Their asking prices run from £2,990 to £6,491.
- 2017 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 14,000 miles. Price: £5,450, raised by £1,200 from £4,250 since AskCar first saw it on 6 July 2026, 126 days ago. Above the going rate: £421 (8%) over the AskCar estimate of £5,029. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 July 2027. Dealer: Acres Car Sales in Bradford. AskCar page: https://askcar.co.uk/car/mg-mg3-2017-945112b63702
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 14,611 miles. Price: £6,491, reduced by £500 from £6,991 since AskCar first saw it on 29 September 2026, 41 days ago. Above the going rate: £1,741 (36%) over the AskCar estimate of £4,750. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 December 2026. Dealer: New Broad Street Motors in Barry. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-90e6f6298407
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, black. Mileage: 25,464 miles. Price: £5,698, unchanged since AskCar first saw it on 3 November 2026, 6 days ago. Above the going rate: £569 (11%) over the AskCar estimate of £5,129. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 28 August 2026; ask the dealer for the current MOT. Dealer: Acar 2 Go in Aylesbury. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-ae7fc26e451e
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, black. Mileage: 27,487 miles. Price: £5,490, unchanged since AskCar first saw it on 5 July 2026, 127 days ago. Above the going rate: £410 (8%) over the AskCar estimate of £5,080. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 January 2027. Dealer: Driven Car Sales (Trade) in Billingham. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-f292436137ce
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 28,000 miles. Price: £4,999, unchanged since AskCar first saw it on 5 November 2026, 4 days ago. Above the going rate: £981 (24%) over the AskCar estimate of £4,018. Euro 5 emissions standard. ULEZ compliant. Dealer: Town & Country Cars in Gillingham. AskCar page: https://askcar.co.uk/car/mg-mg3-2015-f12b1dee9ff2
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 28,429 miles. Price: £4,999, unchanged since AskCar first saw it on 28 October 2026, 12 days ago. Above the going rate: £549 (12%) over the AskCar estimate of £4,450. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 October 2027. Dealer: Clovelly Cars in Ashington. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-7cf622603aa8
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, blue. Mileage: 39,990 miles. Price: £3,990, unchanged since AskCar first saw it on 10 September 2026, 60 days ago. Fair price: £236 (6%) over the AskCar estimate of £3,754. Euro 5 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 6 October 2026; ask the dealer for the current MOT. Dealer: Summit Automotive in Huddersfield. AskCar page: https://askcar.co.uk/car/mg-mg3-2015-9307e4aac1e7
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, yellow. Mileage: 40,646 miles. Price: £5,500, raised by £500 from £5,000 since AskCar first saw it on 20 October 2026, 20 days ago. Above the going rate: £783 (16%) over the AskCar estimate of £4,717. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 20 July 2026; ask the dealer for the current MOT. Dealer: The Car Centre Treforest in Pontypridd. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-d2d59b1888df
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, white. Mileage: 42,000 miles. Price: £5,450, unchanged since AskCar first saw it on 18 October 2026, 22 days ago. Above the going rate: £770 (16%) over the AskCar estimate of £4,680. Euro 6 emissions standard. ULEZ compliant. Dealer: PL Motors in Newtownabbey. AskCar page: https://askcar.co.uk/car/mg-mg3-2018-799239128519
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,990, 42,152 miles. Listed in full under best value.
Recently reduced MG MG3 3FORM Sport: the biggest price reductions in the 14 days to 9 November 2026
The dealer lowered the asking price on each of these 6 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £200 to £995.
- 2014 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,500, 68,219 miles. Listed in full under best value.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,000, 82,700 miles. Listed in full under best value.
- 2017 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,195, 71,000 miles. Listed in full under best value.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £4,450, 45,841 miles. Listed in full under best value.
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,240, 62,367 miles. Listed in full under best value.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,793, 50,425 miles. Listed in full under best value.
Newly advertised MG MG3 3FORM Sport: first seen by AskCar in the 7 days to 9 November 2026
These 5 are the most recently advertised. Cars first seen on the same day are listed cheapest first.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £3,400, 85,500 miles. Listed in full under cheapest.
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport: £2,895, 92,557 miles. Listed in full under cheapest.
- 2016 MG MG3 1.5 VTi-TECH 3FORM Sport, 104 bhp, manual, petrol, hatchback, 5 doors, black. Mileage: 81,986 miles. Price: £3,500, unchanged since AskCar first saw it on 5 November 2026, 4 days ago. Above the going rate: £364 (11%) over the AskCar estimate of £3,136. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 October 2027. Dealer: Bridgend Ford in Bridgend. AskCar page: https://askcar.co.uk/car/mg-mg3-2016-202ec99b28b9
- 2015 MG MG3 1.5 VTi-TECH 3FORM Sport: £4,999, 28,000 miles. Listed in full under lowest mileage.
- 2018 MG MG3 1.5 VTi-TECH 3FORM Sport: £5,698, 25,464 miles. Listed in full under lowest mileage.
Page 2: every other MG MG3 3FORM Sport car, cheapest first
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