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: 59,454 miles
• Fuel: Petrol
• Body: Coupe, 4 doors, 5 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 192 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 59,454 miles on the clock, this 2021 BMW 8 Series Gran Coupe M Sport has done roughly 5,800 more miles than a typical 2021 BMW 8 Series Gran Coupe. The dealer is asking £29,250, which is £1,124 below the AskCar estimate of £30,374. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 46 days ago. Its advertised mileage matches the government's MOT record. The seller is Sytner Stevenage BMW, based in Stevenage. 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: £1,124 (3%) under the AskCar estimate of £30,374.

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 46 days.

Price history

AskCar first saw this advert on 22 September 2026 at £29,750. Its asking price is now £29,250, £500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 22 September 2026: £29,750
• 5 November 2026: £29,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 1 March 2027.

It failed its MOT on 10 February 2026 (offside rear road wheel fractured) and passed 1 day later, on 11 February 2026.

Advisories at the latest test: rear prop shaft rubber donut cracking & perishing.

Mileage at that test: 50,609 miles, which matches the advertised 59,454 miles.

Advertised mileage is about 5,800 miles higher 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 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, blue. Mileage: 53,660 miles. Price: £28,056, £1,194 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: 65,356 miles. Price: £33,000, £3,750 more than this car. Dealer: Sytner Stevenage BMW in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-8-series-gran-coupe-2021-d172ec7d612b
• 2021 BMW 8 Series Gran Coupe M Sport, 3.0 petrol coupe, blue. Mileage: 50,194 miles. Price: £28,995, £255 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