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: 54,503 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

The advertised mileage for this 2021 BMW 8 Series Gran Coupe M Sport is 54,503 miles. Its asking price of £27,990 is £1,095 below the AskCar estimate of £29,085. The AskCar estimate uses 120 UK dealer adverts for the BMW 8 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 64 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is JCT600 Volkswagen Bradford, based in Bradford. 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: £1,095 (3%) under the AskCar estimate of £29,085.

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 64 days.

Price history

AskCar first saw this advert on 5 September 2026 at £28,990. Its asking price is now £27,990, £1,000 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 5 September 2026: £28,990
• 21 September 2026: £28,612
• 25 September 2026: £28,490
• 29 September 2026: £28,290
• 6 October 2026: £28,390
• 20 October 2026: £27,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 19 November 2026.

It has had 3 MOTs. The latest, on 20 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 39,783 miles, which matches the advertised 54,503 miles.

Advertised mileage is about 900 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 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black. Mileage: 55,000 miles. Price: £28,840, £850 more than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-586b83305495
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, grey. Mileage: 50,000 miles. Price: £27,490, £500 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, £2,001 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-ea60e5f8b63f

• The nearest: 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol saloon, black, 7 miles from this car. Mileage: 115,000 miles. Price: £23,490, £4,500 less than this car. Dealer: R S Motorhouse in Leeds. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-8242b3c7085a