2020 BMW 8 Series 3.0 840i

Overview

• Make: BMW
• Model: 8 Series
• Version: 3.0 840i Steptronic RWD Euro 6 (s/s) 2dr (335 bhp)
• Year: 2020
• Mileage: 48,150 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: White
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 8 Series is advertised with 48,150 miles, approximately 7,700 above the typical mileage for its age. The AskCar estimate for this car is £29,278. It is priced at £27,654, which is £1,624 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 186 BMW 8 Series cars across different ages and specifications. We first saw this car advertised 95 days ago. Its asking price has since fallen by £768. The government's MOT record matches its advertised mileage. It is advertised by HK Cars in Bolton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,624 (5%) under the AskCar estimate of £29,278.

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 186 priced BMW 8 Series adverts across different ages and specifications, as of 5 November 2026.

A 2020 BMW 8 Series with the 3.0 petrol engine is typically advertised at £29,500: the median of the 38 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 95 days.

Price history

AskCar first saw this advert on 2 August 2026 at £28,422. Its asking price is now £27,654, £768 less. The latest price cut was seen on 27 August 2026.

Price changes recorded:

• 2 August 2026: £28,422
• 15 August 2026: £27,975
• 19 August 2026: £28,975
• 22 August 2026: £27,975
• 27 August 2026: £27,654

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 21 March 2027.

It has had 5 MOTs. The latest, on 12 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,170 miles, which matches the advertised 48,150 miles.

Advertised mileage is about 7,700 miles higher than the median mileage of a 2020 BMW 8 Series on AskCar.