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: 49,249 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 196 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 49,249 miles on the clock, this 2020 BMW 8 Series Gran Coupe has done roughly 4,500 fewer miles than a typical 2020 BMW 8 Series Gran Coupe. The AskCar estimate for this car is £30,257. It is priced at £28,680, which is £1,577 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 81 days ago, the asking price has dropped by £220. We checked its advertised mileage against the government's MOT record, and they match. The seller is Pentagon Loughborough, based in Loughborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,577 (5%) under the AskCar estimate of £30,257.

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 9 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 24 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2020 BMW 8 Series Gran Coupe has been on sale for at least 81 days.

Price history

AskCar first saw this advert on 20 August 2026 at £28,900. Its asking price is now £28,680, £220 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 20 August 2026: £28,900
• 29 August 2026: £28,800
• 7 September 2026: £28,670
• 15 September 2026: £28,620
• 14 October 2026: £28,900
• 21 October 2026: £28,800
• 28 October 2026: £28,700
• 5 November 2026: £28,680

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 29 June 2027.

It has had 4 MOTs. The latest, on 2 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 45,916 miles, which matches the advertised 49,249 miles.

Advertised mileage is about 4,500 miles lower than the median mileage of a 2020 BMW 8 Series Gran Coupe on AskCar.