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 sDrive M Sport Auto RWD Euro 6 4dr (333) (328 bhp)
• Year: 2021
• Mileage: 45,550 miles
• Fuel: Petrol
• Body: Coupe, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 192 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 8 Series Gran Coupe M Sport is advertised with 45,550 miles, approximately 8,000 below the typical mileage for its age. The dealer is asking £29,990, which is £2,620 below the AskCar estimate of £32,610. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. This car was first seen in our listings data 15 days ago. The government's MOT record matches its advertised mileage. You can find this car at Parker Prestige in Richmond. 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

Good value: £2,620 (8%) under the AskCar estimate of £32,610.

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 8 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 8 November 2026.

Time on sale

This 2021 BMW 8 Series Gran Coupe has been on sale for at least 15 days.

Price history

AskCar first saw this advert on 24 October 2026 at £29,990. 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 8 November 2026: valid until 14 March 2027.

It has had 4 MOTs. The latest, on 27 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 38,368 miles, which matches the advertised 45,550 miles.

Advertised mileage is about 8,000 miles lower than the median mileage of a 2021 BMW 8 Series Gran Coupe on AskCar.

Similar cars

8 other 2021 BMW 8 Series Gran Coupe M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £21,985 to £36,000, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, blue. Mileage: 50,194 miles. Price: £28,995, £995 less than this car. Dealer: Group 1 BMW Lincoln in Lincoln. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-e6d718ea21fd
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, blue. Mileage: 53,660 miles. Price: £28,056, £1,934 less than this car. Dealer: Marshall Motor Group Maidstone Audi in Maidstone. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-76a10b96d50b
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, black. Mileage: 59,454 miles. Price: £29,250, £740 less than this car. Dealer: Sytner Stevenage BMW in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ca30c7d004af

• The nearest: 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, orange, 42 miles from this car. Mileage: 107,000 miles. Price: £21,985, £8,005 less than this car. Dealer: Brooklands Motor Centre in Leeds. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ad2bbe1cf609