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: 96,958 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

This 2020 BMW 8 Series M Sport is advertised with 96,958 miles, approximately 56,500 above the typical mileage for its age. The AskCar estimate for this car is £21,683. It is priced at £23,994, which is £2,311 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 185 BMW 8 Series cars across different ages and specifications. It first appeared in our advert records 36 days ago. Our records show an MOT expiry date of 7 October 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Group 1 Reading BMW, based in Reading. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £2,311 (10%) over the AskCar estimate of £21,683.

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 185 priced BMW 8 Series adverts across different ages and specifications, as of 6 November 2026.

A 2020 BMW 8 Series with the 3.0 petrol engine is typically advertised at £29,200: the median of the 37 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 36 days.

Price history

AskCar first saw this advert on 1 October 2026 at £22,950. Its asking price is now £23,994, £1,044 more.

Price changes recorded:

• 1 October 2026: £22,950
• 8 October 2026: £22,750
• 14 October 2026: £23,450
• 15 October 2026: £23,994

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 7 October 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 4 October 2025, passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; offside rear tyre worn close to legal limit/worn on edge; rear brake pad(s) wearing thin; and 1 more.

Mileage at that test: 79,752 miles, which matches the advertised 96,958 miles.

Advertised mileage is about 56,500 miles higher 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 £29,105 to £33,500, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW 8 Series M Sport, 3.0 petrol coupe, grey. Mileage: 39,197 miles. Price: £29,105, £5,111 more than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-1b1be605bc33
• 2020 BMW 8 Series M Sport, 3.0 petrol coupe, blue. Mileage: 35,000 miles. Price: £29,949, £5,955 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, black. Mileage: 27,000 miles. Price: £29,645, £5,651 more than this car. Dealer: TMMC The Manchester Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-e03fce8b78cd

• The nearest: 2020 BMW 8 Series M Sport, 3.0 petrol coupe, black, 18 miles from this car. Mileage: 25,400 miles. Price: £33,500, £9,506 more than this car. Dealer: 12 London Road in Woking. AskCar page: https://askcar.co.uk/car/bmw-8-series-2020-aee796d93052