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
• Year: 2020
• Mileage: 55,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 197 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 55,000 miles on the clock, this 2020 BMW 8 Series Gran Coupe has done roughly 2,500 more miles than a typical 2020 BMW 8 Series Gran Coupe. Its asking price of £28,780 is £1,229 above the AskCar estimate of £27,551. The AskCar estimate uses UK dealer asking prices, including 121 BMW 8 Series Gran Coupe adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 17 days ago. Its asking price has since fallen by £100. The government's MOT record matches its advertised mileage. It is advertised by Oakdene Collection in Alfreton. 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

Fair price: £1,229 (4%) over the AskCar estimate of £27,551.

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

A 2020 BMW 8 Series Gran Coupe with the 3.0 petrol engine is typically advertised at £27,800: the median of the 25 for sale on AskCar, as of 6 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 20 October 2026 at £28,880. Its asking price is now £28,780, £100 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 20 October 2026: £28,880
• 26 October 2026: £28,780

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 20 December 2026.

It has had 4 MOTs. The latest, on 15 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 48,402 miles, which matches the advertised 55,000 miles.

Advertised mileage is about 2,500 miles higher than the median mileage of a 2020 BMW 8 Series Gran Coupe on AskCar.