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: 24,600 miles
• Fuel: Petrol
• Body: Coupe, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Red
• 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 24,600 miles, approximately 29,000 below the typical mileage for its age. The dealer is asking £36,000, which is £154 below the AskCar estimate of £36,154. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. It first appeared in our advert records 18 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sytner High Wycombe BMW, based in High Wycombe. 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: £154 (under 1%) under the AskCar estimate of £36,154.

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 18 days.

Price history

AskCar first saw this advert on 21 October 2026 at £36,000. 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 2 September 2027.

It has had 3 MOTs. The latest, on 25 August 2026, passed.

Advisories at the latest test: rear prop shaft flexible coupling slightly deteriorated starting to crack; nearside front road wheel slightly distorted inner rim.

Mileage at that test: 24,077 miles, which matches the advertised 24,600 miles.

Advertised mileage is about 29,000 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 £33,000, 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, grey. Mileage: 22,000 miles. Price: £32,000, £4,000 less than this car. Dealer: Sytner Cardiff BMW in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-a182f265f5ff
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, grey. Mileage: 45,550 miles. Price: £29,990, £6,010 less than this car. Dealer: Parker Prestige in Richmond. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-1223e044d4ba
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, blue. Mileage: 50,194 miles. Price: £28,995, £7,005 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

• The nearest: 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, black, 29 miles from this car. Mileage: 59,454 miles. Price: £29,250, £6,750 less than this car. Dealer: Sytner Stevenage BMW in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ca30c7d004af