2020 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: 2020
• Mileage: 27,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 328 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 189 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 27,000 miles, this 2020 BMW 8 Series M Sport has covered about 19,000 fewer miles than other 2020 BMW 8 Series cars. Priced at £29,895, it is advertised £3,786 below the AskCar estimate of £33,681. The AskCar estimate uses UK dealer asking prices, including 179 BMW 8 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 32 days ago, the asking price has dropped by £1,104. Its advertised mileage matches the government's MOT record. It is advertised by TMMC The Manchester Motor Company in Bolton. 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

Good value: £3,786 (11%) under the AskCar estimate of £33,681.

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 2020 BMW 8 Series with the 3.0 petrol engine is typically advertised at £29,300: the median of the 36 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 32 days.

Price history

AskCar first saw this advert on 1 October 2026 at £30,999. Its asking price is now £29,895, £1,104 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 1 October 2026: £30,999
• 26 October 2026: £30,495
• 31 October 2026: £29,895

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 September 2027.

It has had 5 MOTs. The latest, on 30 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,176 miles, which matches the advertised 27,000 miles.

Advertised mileage is about 19,000 miles lower than the median mileage of a 2020 BMW 8 Series on AskCar.

Similar cars

4 other 2020 BMW 8 Series M Sport 3.0 petrol automatic coupes are for sale at UK dealers, from £23,994 to £33,500, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 8 Series M Sport, 3.0 petrol coupe, black. Mileage: 25,400 miles. Price: £33,500, £3,605 more than this car. Dealer: 12 London Road in Woking. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-aee796d93052
• 2020 BMW 8 Series M Sport, 3.0 petrol coupe, blue. Mileage: 35,000 miles. Price: £30,949, £1,054 more than this car. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-92bd688a70b1
• 2020 BMW 8 Series M Sport, 3.0 petrol coupe, grey. Mileage: 39,197 miles. Price: £29,410, £485 less than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-1b1be605bc33