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
• Year: 2021
• Mileage: 55,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 193 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 8 Series Gran Coupe M Sport has covered 55,000 miles. Its asking price of £28,840 is £187 below the AskCar estimate of £29,027. The AskCar estimate uses UK dealer asking prices, including 120 BMW 8 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 12 days ago, and its asking price has since fallen by £140. Its advertised mileage matches the government's MOT record. It is advertised by Oakdene Collection in Alfreton. 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

Fair price: £187 (under 1%) under the AskCar estimate of £29,027.

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 12 days.

Price history

AskCar first saw this advert on 28 October 2026 at £28,980. Its asking price is now £28,840, £140 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 28 October 2026: £28,980
• 6 November 2026: £28,840

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 28 July 2027.

It failed its MOT on 29 July 2026 (front headlamp aim too high both) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 50,245 miles, which matches the advertised 55,000 miles.

Advertised mileage is about 1,400 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, black. Mileage: 54,503 miles. Price: £27,990, £850 less than this car. Dealer: JCT600 Volkswagen Bradford in Bradford. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-44f15b5952ca
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, grey. Mileage: 50,000 miles. Price: £27,490, £1,350 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-7d2e4c489928
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 65,186 miles. Price: £29,991, £1,151 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ea60e5f8b63f