2020 BMW 8 Series 4.4 850i

Price: £40,500. Fair price: £1,105 (2%) under the AskCar estimate of £41,605, our expected asking price for this car from its model, age, mileage and specification, drawing on 186 priced BMW 8 Series adverts on AskCar as of 5 November 2026.

AskCar lists 193 used BMW 8 Series from 162 UK dealerships, as of 5 November 2026.

Overview

  • Make: BMW
  • Model: 8 Series
  • Version: 4.4 M850i Auto 4WD Euro 6 (522 bhp)
  • Year: 2020
  • Mileage: 46,000 miles
  • Fuel: Petrol
  • Body: Coupe
  • Engine: 4.4 litres, 522 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 262 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW 8 Series has covered 46,000 miles, around 5,500 more miles than is typical for its age. Its asking price of £40,500 is £1,105 below the AskCar estimate of £41,605. The AskCar estimate uses UK dealer asking prices, including 186 BMW 8 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 27 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Cardiff BMW, based in Cardiff. 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: £1,105 (2%) under the AskCar estimate of £41,605.

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.

Time on sale

This 2020 BMW 8 Series has been on sale for at least 27 days.

Price history

AskCar first saw this advert on 9 October 2026 at £41,000. Its asking price is now £40,500, £500 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

  • 9 October 2026: £41,000
  • 22 October 2026: £40,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 10 March 2027.

It has had 4 MOTs. The latest, on 11 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,405 miles, which matches the advertised 46,000 miles.

Advertised mileage is about 5,500 miles higher 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

4 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.