2021 BMW 8 Series 3.0 840i M Sport

Overview

• Make: BMW
• Model: 8 Series
• Trim: M Sport
• Version: 3.0 840i M Sport Steptronic RWD Euro 6 (s/s) 2dr (328 bhp)
• Year: 2021
• Mileage: 101,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 189 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 8 Series M Sport has covered 101,000 miles, around 58,100 more miles than is typical for its age. The AskCar estimate for this car is £22,203. It is priced at £23,695, which is £1,492 above that estimate. The AskCar estimate draws on 179 BMW 8 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 23 days ago. The government's MOT record matches its advertised mileage. You can find this car at Raymond Smith Garages in Bedford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,492 (6%) over the AskCar estimate of £22,203.

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 179 priced BMW 8 Series adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW 8 Series with the 3.0 petrol engine is typically advertised at £32,700: the median of the 22 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW 8 Series has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 10 October 2026 at £23,695. 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 2 November 2026: valid until 28 July 2027.

It has had 3 MOTs. The latest, on 29 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 100,105 miles, which matches the advertised 101,000 miles.

Advertised mileage is about 58,100 miles higher than the median mileage of a 2021 BMW 8 Series on AskCar.

Similar cars

10 other 2021 BMW 8 Series M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £27,995 to £35,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, black. Mileage: 68,884 miles. Price: £27,995, £4,300 more than this car. Dealer: The Country Garage in Ballymena. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-69feefdd04af
• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, grey. Mileage: 54,282 miles. Price: £34,000, £10,305 more than this car. Dealer: Sytner Warwick BMW in Warwick. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-83c3a57d450c
• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, grey. Mileage: 50,000 miles. Price: £32,925, £9,230 more than this car. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-4bd98636f9ff