2020 BMW 8 Series 3.0 840i

Overview

• Make: BMW
• Model: 8 Series
• Version: 3.0 840i Steptronic RWD Euro 6 (s/s) 2dr
• Year: 2020
• Mileage: 23,220 miles
• Fuel: Petrol
• Body: Convertible, 2 doors, 4 seats
• Engine: 3.0 litres
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 194 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,220 miles on the clock, this 2020 BMW 8 Series has done roughly 17,300 fewer miles than a typical 2020 BMW 8 Series. Priced at £34,999, it is advertised £2,356 above the AskCar estimate of £32,643. 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 recorded this advert 33 days ago, and its asking price has since fallen by £1,000. Its advertised mileage matches the government's MOT record. The seller is Stebbings Car Superstore Kings Lynn, based in Kings Lynn. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,356 (7%) over the AskCar estimate of £32,643.

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 8 November 2026.

A 2020 BMW 8 Series with the 3.0 petrol engine is typically advertised at £29,500: the median of the 37 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 6 October 2026 at £35,999. Its asking price is now £34,999, £1,000 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 6 October 2026: £35,999
• 3 November 2026: £34,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 18 February 2027.

It has had 4 MOTs. The latest, on 19 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 22,384 miles, which matches the advertised 23,220 miles.

Advertised mileage is about 17,300 miles lower than the median mileage of a 2020 BMW 8 Series on AskCar.