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: 39,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 170 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 39,000 miles on the clock, this 2020 BMW 8 Series Gran Coupe has done roughly 14,700 fewer miles than a typical 2020 BMW 8 Series Gran Coupe. The dealer is asking £31,995, which is £2,184 above the AskCar estimate of £29,811. To work out the AskCar estimate, we analyse UK dealer adverts for 120 BMW 8 Series Gran Coupe cars across different ages and specifications. The asking price is now £2,500 lower than when we first recorded the advert 64 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by HK Performance in Manchester. 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: £2,184 (7%) over the AskCar estimate of £29,811.

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 64 days.

Price history

AskCar first saw this advert on 6 September 2026 at £34,495. Its asking price is now £31,995, £2,500 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 6 September 2026: £34,495
• 14 September 2026: £33,995
• 3 October 2026: £33,495
• 9 October 2026: £32,995
• 28 October 2026: £31,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 6 April 2027.

It failed its MOT on 1 April 2026 (tyre pressure monitoring system malfunctioning or obviously inoperative; nearside rear tyre has a tear, caused by separation or partial failure of its structure; nearside rear tyre has ply or cords exposed) and passed 6 days later, on 7 April 2026.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge 2.5 mm; front under bonnet components obscuring testable items; undertrays obscuring testable items.

Mileage at that test: 34,999 miles, which matches the advertised 39,000 miles.

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