2020 BMW 8 Series 3.0 840d

Price: £34,990. Fair price: £224 (under 1%) under the AskCar estimate of £35,214, our expected asking price for this car from its model, age, mileage and specification, drawing on 182 priced BMW 8 Series adverts on AskCar as of 4 November 2026.

AskCar lists 189 used BMW 8 Series from 162 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: 8 Series
  • Version: 3.0 840d Steptronic 4WD Euro 6 (s/s) 2dr (316 bhp)
  • Year: 2020
  • Mileage: 28,488 miles
  • Fuel: Diesel
  • Body: Coupe, 2 doors, 4 seats
  • Engine: 3.0 litres, 316 bhp
  • Gearbox: Automatic (Steptronic)
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 160 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 28,488 miles on the clock, this 2020 BMW 8 Series has done roughly 12,000 fewer miles than a typical 2020 BMW 8 Series. Priced at £34,990, it is advertised £224 below the AskCar estimate of £35,214. The AskCar estimate draws on 182 BMW 8 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 47 days ago. You can find this car at MJM Car Sales in Bishop Auckland. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £224 (under 1%) under the AskCar estimate of £35,214.

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 182 priced BMW 8 Series adverts across different ages and specifications, as of 4 November 2026.

A 2020 BMW 8 Series with the 3.0 diesel engine is typically advertised at £29,500: the median of the 38 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 47 days.

Price history

AskCar first saw this advert on 18 September 2026 at £34,990. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 12,000 miles lower than the median mileage of a 2020 BMW 8 Series on AskCar.

Browse all BMW 8 Series cars for sale · 2020 BMW 8 Series price guide

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Photos

77 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.