2021 BMW 8 Series prices
There are 25 used 2021 BMW 8 Series cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £32,500 (the median: half cost less, half cost more). The cheapest is £23,695. The middle half are priced between £31,500 and £34,000. Median mileage: about 43,000 miles.
Dealers lowered the asking price on more than a third of 2021 BMW 8 Series cars: 12 of the 25 in the 14 days to 9 November 2026.
2021 BMW 8 Series prices by engine and mileage
| Engine | All mileages | Under 20,000 miles | 20,000 to 40,000 miles | 40,000 to 60,000 miles | 60,000 miles or more |
|---|---|---|---|---|---|
| 3.0 petrol | £32,500 | Too few for sale | Too few for sale | Too few for sale | Too few for sale |
Only 1 of the 2021 BMW 8 Series cars for sale have the 4.4 petrol engine, too few to give a typical asking price.
Typical asking prices are of 2021 BMW 8 Series cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.
2021 BMW 8 Series against other years
A 2020 BMW 8 Series car has a typical asking price of £30,000 and a 2022 one £36,000, as of 9 November 2026.
AskCar lists 193 used BMW 8 Series across the UK, from 161 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.
2021 BMW 8 Series 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. All 25 cars listed here meet these rules. Page 2 lists every other 2021 BMW 8 Series car, cheapest first.
The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 185 priced BMW 8 Series adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 BMW 8 Series.
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.
Best value 2021 BMW 8 Series: priced furthest below the AskCar estimate
These 10 are priced 2% to 10% under their AskCar estimate. Their asking prices run from £30,990 to £36,995.
- 2021 BMW 8 Series 4.4 M850i V8, 523 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 51,314 miles. Price: £36,995, reduced by £3,000 from £39,995 since AskCar first saw it on 9 September 2026, 61 days ago. Good value: £4,364 (10%) under the AskCar estimate of £41,359. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 22 October 2026; ask the dealer for the current MOT. Dealer: EAG Specialist Cars in St Neots. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-7813e089195c
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 23,889 miles. Price: £32,950, unchanged since AskCar first saw it on 25 September 2026, 45 days ago. Fair price: £2,640 (7%) under the AskCar estimate of £35,590. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 May 2027. Dealer: JKC BMW in Coleraine. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-2394a2465208
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 39,000 miles. Price: £30,990, unchanged since AskCar first saw it on 15 October 2026, 25 days ago. Fair price: £1,999 (6%) under the AskCar estimate of £32,989. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 October 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-e8c3ca17bf92
- 2021 BMW 8 Series 3.0 840d MHT M Sport, 335 bhp, automatic, diesel, coupe, blue. Mileage: 24,633 miles. Price: £35,000, reduced by £3,500 from £38,500 since AskCar first saw it on 11 August 2026, 90 days ago. Fair price: £1,590 (4%) under the AskCar estimate of £36,590. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 August 2027. Dealer: Sytner Warwick BMW in Warwick. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-a5b86e23e78e
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 42,904 miles. Price: £30,999, reduced by £500 from £31,499 since AskCar first saw it on 17 October 2026, 23 days ago. Fair price: £1,292 (4%) under the AskCar estimate of £32,291. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 July 2027. Dealer: Williams Bolton Bmw in Bolton. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-16b225c2bd75
- 2021 BMW 8 Series 3.0 840d, 316 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 39,133 miles. Price: £34,990, reduced by £2,000 from £36,990 since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £1,354 (3%) under the AskCar estimate of £36,344. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 14 May 2025; ask the dealer for the current MOT. Dealer: Lkc Motors in Worksop. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-70367e0e7de1
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 44,578 miles. Price: £31,000, reduced by £1,500 from £32,500 since AskCar first saw it on 18 September 2026, 52 days ago. Fair price: £997 (3%) under the AskCar estimate of £31,997. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 January 2027. Dealer: Sytner Coventry BMW in Coventry. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-b86cc63e4b98
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 36,205 miles. Price: £32,495, reduced by £500 from £32,995 since AskCar first saw it on 1 October 2026, 39 days ago. Fair price: £1,002 (2%) under the AskCar estimate of £33,497. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 December 2026. Dealer: Park's Motor Group Douglas Park BMW Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-5402aa1c7e82
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 45,575 miles. Price: £30,990, unchanged since AskCar first saw it on 11 October 2026, 29 days ago. Fair price: £832 (2%) under the AskCar estimate of £31,822. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 March 2027. Dealer: Main Road Motor Company in Worcester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-0d26fd4eb139
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 37,990 miles. Price: £32,460, reduced by £1,480 from £33,940 since AskCar first saw it on 24 September 2026, 46 days ago. Fair price: £712 (2%) under the AskCar estimate of £33,172. Euro 6 emissions standard. ULEZ compliant. Dealer: Dace Specialist Car Centre Manchester - Trading Standards Approved in Manchester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-2d0092a2bb6d
Cheapest 2021 BMW 8 Series: the lowest asking prices
These 10 are priced £23,695 to £31,980. They have covered 39,000 to 101,000 miles.
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 101,000 miles. Price: £23,695, unchanged since AskCar first saw it on 10 October 2026, 30 days ago. Above the going rate: £1,812 (8%) over the AskCar estimate of £21,883. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 July 2027. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-04c5e03b115f
- 2021 BMW 8 Series 3.0 840i, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 63,027 miles. Price: £29,975, reduced by £1,513 from £31,488 since AskCar first saw it on 18 September 2026, 52 days ago. Fair price: £2,097 (7%) over the AskCar estimate of £27,878. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 August 2027. Dealer: Junction 17 Cars Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-b07ebc89fd5b
- 2021 BMW 8 Series 3.0 840i M Sport: £30,990, 45,575 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport: £30,990, 39,000 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport: £30,999, 42,904 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport: £31,000, 44,578 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i, 335 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 50,900 miles. Price: £31,490, reduced by £1,500 from £32,990 since AskCar first saw it on 9 September 2026, 61 days ago. Fair price: £275 (under 1%) over the AskCar estimate of £31,215. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 June 2027. Dealer: Schofield Motors in Preston. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-5d71849ea188
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 50,000 miles. Price: £31,925, reduced by £3,024 from £34,949 since AskCar first saw it on 25 August 2026, 76 days ago. Fair price: £864 (2%) over the AskCar estimate of £31,061. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 November 2026. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-4bd98636f9ff
- 2021 BMW 8 Series 3.0 840d MHT M Sport, 335 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 55,000 miles. Price: £31,950, reduced by £1,000 from £32,950 since AskCar first saw it on 16 June 2026, 146 days ago. Fair price: £427 (1%) over the AskCar estimate of £31,523. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 May 2027. Dealer: Magee Automotive in Lisburn. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-d0d41c73e83d
- 2021 BMW 8 Series 3.0 840d MHT M Sport, 335 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 48,992 miles. Price: £31,980, reduced by £2,500 from £34,480 since AskCar first saw it on 10 September 2026, 60 days ago. Fair price: £597 (1%) under the AskCar estimate of £32,577. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 July 2027. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-8fbc62ba4fbd
Lowest-mileage 2021 BMW 8 Series
These 10 have covered 6,547 to 39,000 miles. Their asking prices run from £30,990 to £40,514.
- 2021 BMW 8 Series 3.0 840i, 335 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 6,547 miles. Price: £38,995, unchanged since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £390 (under 1%) under the AskCar estimate of £39,385. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 January 2027. Dealer: VD Motor Group in London. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-cc12729b89ec
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 9,250 miles. Price: £40,514, reduced by £1,967 from £42,481 since AskCar first saw it on 30 September 2026, 40 days ago. Fair price: £2,439 (6%) over the AskCar estimate of £38,075. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 12 August 2026; ask the dealer for the current MOT. Dealer: Vertu BMW Teesside in Teesside. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-a60dcd33acbd
- 2021 BMW 8 Series 3.0 840i M Sport: £32,950, 23,889 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840d MHT M Sport: £35,000, 24,633 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 27,628 miles. Price: £35,790, reduced by £205 from £35,995 since AskCar first saw it on 28 October 2026, 12 days ago. Fair price: £775 (2%) over the AskCar estimate of £35,015. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 August 2027. Dealer: Group 1 Ipswich BMW in Ipswich. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-1c33754b2b50
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 32,433 miles. Price: £33,975, reduced by £2,000 from £35,975 since AskCar first saw it on 13 August 2026, 88 days ago. Fair price: £231 (under 1%) under the AskCar estimate of £34,206. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 June 2027. Dealer: PCBS Sales in Tonbridge. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-e587dbeecdb3
- 2021 BMW 8 Series 3.0 840i M Sport: £32,495, 36,205 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport: £32,460, 37,990 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 38,200 miles. Price: £32,490, unchanged since AskCar first saw it on 7 November 2026, 2 days ago. Fair price: £643 (1%) under the AskCar estimate of £33,133. Euro 6 emissions standard. ULEZ compliant. Dealer: Auto Sportiva in Tonbridge. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-e3de47f71c0c
- 2021 BMW 8 Series 3.0 840i M Sport: £30,990, 39,000 miles. Listed in full under best value.
Recently reduced 2021 BMW 8 Series: the biggest price reductions in the 14 days to 9 November 2026
The dealer lowered the asking price on each of these 10 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £500 to £3,500.
- 2021 BMW 8 Series 3.0 840d MHT M Sport: £35,000, 24,633 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i M Sport: £31,925, 50,000 miles. Listed in full under cheapest.
- 2021 BMW 8 Series 3.0 840d MHT M Sport: £31,980, 48,992 miles. Listed in full under cheapest.
- 2021 BMW 8 Series 3.0 840i M Sport: £40,514, 9,250 miles. Listed in full under lowest mileage.
- 2021 BMW 8 Series 3.0 840i: £29,975, 63,027 miles. Listed in full under cheapest.
- 2021 BMW 8 Series 3.0 840i M Sport: £31,000, 44,578 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840i: £31,490, 50,900 miles. Listed in full under cheapest.
- 2021 BMW 8 Series 3.0 840i M Sport: £32,460, 37,990 miles. Listed in full under best value.
- 2021 BMW 8 Series 3.0 840d MHT M Sport: £31,950, 55,000 miles. Listed in full under cheapest.
- 2021 BMW 8 Series 3.0 840i M Sport: £30,999, 42,904 miles. Listed in full under best value.
Newly advertised 2021 BMW 8 Series: first seen by AskCar in the 7 days to 9 November 2026
These 2 are the most recently advertised. Cars first seen on the same day are listed cheapest first.
- 2021 BMW 8 Series 3.0 840i M Sport: £32,490, 38,200 miles. Listed in full under lowest mileage.
- 2021 BMW 8 Series 3.0 840i M Sport, 328 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 50,000 miles. Price: £31,990, unchanged since AskCar first saw it on 6 November 2026, 3 days ago. Fair price: £921 (2%) over the AskCar estimate of £31,069. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 August 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-2d45d3fa23e5
Page 2: every other 2021 BMW 8 Series car, cheapest first
BMW 8 Series by gearbox, fuel and body
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BMW 8 Series by trim
BMW 8 Series by price
BMW 8 Series near you
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