2021 BMW 8 Series Gran Coupe 3.0 840i M Sport

Overview

• Make: BMW
• Model: 8 Series Gran Coupe
• Trim: M Sport
• Version: 3.0 840i M Sport Steptronic RWD Euro 6 (s/s) 4dr (328 bhp)
• Year: 2021
• Mileage: 105,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 195 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 8 Series Gran Coupe M Sport has covered 105,000 miles, around 51,400 more miles than is typical for its age. The dealer is asking £23,495, which is £2,213 above the AskCar estimate of £21,282. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. We first recorded this car for sale 13 days ago. Its advertised mileage matches the government's MOT record. You can find this car at Goldstone Cars in Bedford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,213 (10%) over the AskCar estimate of £21,282.

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 120 priced BMW 8 Series Gran Coupe adverts across different ages and specifications, as of 9 November 2026.

A 2021 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £29,000: the median of the 25 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2021 BMW 8 Series Gran Coupe has been on sale for at least 13 days.

Price history

AskCar first saw this advert on 27 October 2026 at £23,495. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 6 May 2027.

It failed its MOT on 28 April 2026 (offside front tyre has a lump, caused by separation or partial failure of its structure) and passed 1 day later, on 29 April 2026.

Advisories at the latest test: wiper blades worn; rear registration plate deteriorated but not likely to be misread; rear prop shaft flexible coupling slightly deteriorated; and 2 more.

Mileage at that test: 98,128 miles, which matches the advertised 105,000 miles.

Advertised mileage is about 51,400 miles higher than the median mileage of a 2021 BMW 8 Series Gran Coupe on AskCar.

Similar cars

11 other 2021 BMW 8 Series Gran Coupe M Sport 3.0 petrol automatic saloons are for sale at UK dealers, from £22,995 to £30,990, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, orange. Mileage: 107,300 miles. Price: £22,995, £500 less than this car. Dealer: Duman Autos in Livingston. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-f0e45b2e5028
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 115,000 miles. Price: £23,490, the same price as this car. Dealer: R S Motorhouse in Leeds. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-8242b3c7085a
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 67,388 miles. Price: £25,985, £2,490 more than this car. Dealer: Bayer Car Sales in Fareham. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-4f916bc7d64e

• The nearest: 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black, 33 miles from this car. Mileage: 65,891 miles. Price: £29,800, £6,305 more than this car. Dealer: Elton Cars in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-1fc2b4d1f225