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: 65,891 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 195 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 8 Series Gran Coupe M Sport has covered 65,891 miles, around 12,200 more miles than is typical for its age. The AskCar estimate for this car is £28,225. It is priced at £29,800, which is £1,575 above that estimate. The AskCar estimate draws on 120 BMW 8 Series Gran Coupe adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 14 days ago. Its advertised mileage matches the government's MOT record. It is for sale at Elton Cars in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,575 (5%) over the AskCar estimate of £28,225.

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 7 November 2026.

A 2021 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £29,100: the median of the 24 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 BMW 8 Series Gran Coupe has been on sale for at least 14 days.

Price history

AskCar first saw this advert on 24 October 2026 at £29,800. 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 7 November 2026: valid until 18 January 2027.

It has had 3 MOTs. The latest, on 19 January 2026, passed.

Advisories at the latest test: front brake disc worn, but not excessively.

Mileage at that test: 62,291 miles, which matches the advertised 65,891 miles.

Advertised mileage is about 12,200 miles higher than the median mileage of a 2021 BMW 8 Series Gran Coupe on AskCar.

Similar cars

10 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 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 65,186 miles. Price: £29,991, £191 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ea60e5f8b63f
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 67,388 miles. Price: £25,985, £3,815 less than this car. Dealer: Bayer Car Sales in Fareham. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-4f916bc7d64e
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 55,000 miles. Price: £28,840, £960 less than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-586b83305495

• The nearest: 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, grey, 13 miles from this car. Mileage: 50,000 miles. Price: £27,490, £2,310 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-7d2e4c489928