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 57,300 more miles than is typical for its age. The AskCar estimate for this car is £21,838. It is priced at £23,695, which is £1,857 above that estimate. The AskCar estimate draws on 186 BMW 8 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 29 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 8 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,857 (8%) over the AskCar estimate of £21,838.

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

A 2021 BMW 8 Series with the 3.0 petrol engine is typically advertised at £32,500: the median of the 23 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 BMW 8 Series has been on sale for at least 29 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 8 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 57,300 miles higher than the median mileage of a 2021 BMW 8 Series on AskCar.

Similar cars

11 other 2021 BMW 8 Series M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £30,990 to £35,790, as of 8 November 2026.

The 3 closest to this car in mileage:

• 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: £31,925, £8,230 more than this car. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-4bd98636f9ff
• 2021 BMW 8 Series M Sport, 3.0 petrol coupe, black. Mileage: 45,575 miles. Price: £30,990, £7,295 more than this car. Dealer: Main Road Motor Company in Worcester. AskCar page: https://askcar.co.uk/car/bmw-8-series-2021-0d26fd4eb139