2020 BMW 8 Series Gran Coupe 3.0 840i

Overview

• Make: BMW
• Model: 8 Series Gran Coupe
• Version: 3.0 840i Steptronic RWD Euro 6 (s/s) 4dr (335 bhp)
• Year: 2020
• Mileage: 67,165 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 196 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 8 Series Gran Coupe has covered 67,165 miles, around 14,700 more miles than is typical for its age. The AskCar estimate for this car is £27,212. It is priced at £24,995, which is £2,217 below that estimate. The AskCar estimate uses UK dealer asking prices, including 120 BMW 8 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 17 days. The government's MOT record matches its advertised mileage. It is advertised by Hartington Motors in Wigan. 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

Good value: £2,217 (8%) under the AskCar estimate of £27,212.

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 2020 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £27,600: the median of the 25 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 BMW 8 Series Gran Coupe has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 21 October 2026 at £24,995. 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 7 November 2026: valid until 19 July 2027.

It has had 5 MOTs. The latest, on 20 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 66,831 miles, which matches the advertised 67,165 miles.

Advertised mileage is about 14,700 miles higher than the median mileage of a 2020 BMW 8 Series Gran Coupe on AskCar.