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: 38,000 miles
• Fuel: Petrol
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 38,000 miles on the clock, this 2020 BMW 8 Series has done roughly 2,500 fewer miles than a typical 2020 BMW 8 Series. The AskCar estimate for this car is £30,946. It is priced at £30,290, which is £656 below that estimate. The AskCar estimate uses 186 UK dealer adverts for the BMW 8 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 29 days ago. Its asking price has since fallen by £1,160. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at JAD Motor in Birmingham. 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: £656 (2%) under the AskCar estimate of £30,946.

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 29 days.

Price history

AskCar first saw this advert on 7 October 2026 at £31,450. Its asking price is now £30,290, £1,160 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 7 October 2026: £31,450
• 14 October 2026: £30,990
• 25 October 2026: £30,690
• 3 November 2026: £30,290

Mileage and MOT

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

It has had 5 MOTs. The latest, on 6 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 38,134 miles, which matches the advertised 38,000 miles.

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