2021 BMW 8 Series 3.0 840i M Sport

Overview

• Make: BMW
• Model: 8 Series
• Trim: M Sport
• Version: 3.0 840i M Sport Steptronic RWD Euro 6 (s/s) 2dr (328 bhp)
• Year: 2021
• Mileage: 27,628 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 189 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 27,628 miles, this 2021 BMW 8 Series M Sport has covered about 16,100 fewer miles than other 2021 BMW 8 Series cars. The AskCar estimate for this car is £34,928. It is priced at £35,790, which is £862 above that estimate. The AskCar estimate uses 186 UK dealer adverts for the BMW 8 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 11 days ago. Its asking price has since fallen by £205. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Ipswich BMW, based in Ipswich. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £862 (2%) over the AskCar estimate of £34,928.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 186 priced BMW 8 Series adverts across different ages and specifications, as of 8 November 2026.

A 2021 BMW 8 Series with the 3.0 petrol engine is typically advertised at £32,500: the median of the 23 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 BMW 8 Series has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 28 October 2026 at £35,995. Its asking price is now £35,790, £205 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 28 October 2026: £35,995
• 6 November 2026: £35,790

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 17 August 2027.

It has had 4 MOTs. The latest, on 18 August 2026, passed.

Advisories at the latest test: rear registration plate deteriorated but not likely to be misread; nearside rear tyre worn close to legal limit/worn on edge.

Mileage at that test: 25,887 miles, which matches the advertised 27,628 miles.

Advertised mileage is about 16,100 miles lower than the median mileage of a 2021 BMW 8 Series on AskCar.

Similar cars

11 other 2021 BMW 8 Series M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £23,695 to £34,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, black. Mileage: 23,889 miles. Price: £32,950, £2,840 less than this car. Dealer: JKC BMW in Coleraine. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-2394a2465208
• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, blue. Mileage: 36,205 miles. Price: £32,495, £3,295 less than this car. 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 M Sport, 3.0 petrol coupe, blue. Mileage: 37,990 miles. Price: £32,460, £3,330 less than this car. Dealer: Dace Specialist Car Centre Manchester - Trading Standards Approved in Manchester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-2d0092a2bb6d

• The nearest: 2021 BMW 8 Series M Sport, 3.0 petrol coupe, grey, 62 miles from this car. Mileage: 101,000 miles. Price: £23,695, £12,095 less than this car. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-04c5e03b115f