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: 30,000 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

The advertised mileage for this 2020 BMW 8 Series Gran Coupe is 30,000 miles. Its asking price of £32,849 is £632 below the AskCar estimate of £33,481. To work out the AskCar estimate, we analyse UK dealer adverts for 121 BMW 8 Series Gran Coupe cars across different ages and specifications. Since we first spotted the advert 23 days ago, the asking price has dropped by £1,000. The advertised mileage is lower than the latest MOT reading of 34,872 miles. Ask the dealer to explain. Its recorded MOT is valid until 29 September 2027. It is for sale at A1 Ortos in Oldham. 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: £632 (1%) under the AskCar estimate of £33,481.

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 23 days.

Price history

AskCar first saw this advert on 14 October 2026 at £33,849. Its asking price is now £32,849, £1,000 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 14 October 2026: £33,849
• 6 November 2026: £32,849

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 29 September 2027.

It failed its MOT on 23 September 2026 (nearside rear tyre has ply or cords exposed; offside rear tyre has ply or cords exposed) and passed later the same day.

Advisories at the latest test: rear prop shaft flexible coupling slightly deteriorated.

Mileage at that test: 34,872 miles. The advert says 30,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 22,500 miles lower than the median mileage of a 2020 BMW 8 Series Gran Coupe on AskCar.