2020 BMW X6 3.0 M50d
Price: £39,870. Fair price: £1,444 (3%) under the AskCar estimate of £41,314, our expected asking price for this car from its model, age, mileage and specification, drawing on 541 priced BMW X6 adverts on AskCar as of 7 November 2026.
AskCar lists 560 used BMW X6 from 390 UK dealerships, as of 7 November 2026.
Overview
- Make: BMW
- Model: X6
- Version: 3.0 M50d Auto 4WD Euro 6 (s/s) 5dr (395 bhp)
- Year: 2020
- Mileage: 41,894 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 395 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 218 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 41,894 miles on the clock, this 2020 BMW X6 has done roughly 8,900 fewer miles than a typical 2020 BMW X6. The dealer is asking £39,870, which is £1,444 below the AskCar estimate of £41,314. To work out the AskCar estimate, we analyse UK dealer adverts for 541 BMW X6 cars across different ages and specifications. Since we first spotted the advert 28 days ago, the asking price has dropped by £600. Its advertised mileage matches the government's MOT record. It is for sale at Sytner Harold Wood BMW in Romford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £1,444 (3%) under the AskCar estimate of £41,314.
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 541 priced BMW X6 adverts across different ages and specifications, as of 7 November 2026.
A 2020 BMW X6 with the 3.0 diesel engine is typically advertised at £36,000: the median of the 39 for sale on AskCar, as of 7 November 2026.
Time on sale
This 2020 BMW X6 has been on sale for at least 28 days.
Price history
AskCar first saw this advert on 10 October 2026 at £40,470. Its asking price is now £39,870, £600 less. The latest price cut was seen on 6 November 2026.
Price changes recorded:
- 10 October 2026: £40,470
- 29 October 2026: £39,970
- 6 November 2026: £39,870
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 11 November 2026.
It has had 4 MOTs. The latest, on 24 October 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 40,488 miles, which matches the advertised 41,894 miles.
Advertised mileage is about 8,900 miles lower than the median mileage of a 2020 BMW X6 on AskCar.
Browse all BMW X6 cars for sale · 2020 BMW X6 price guide
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Photos
23 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.