2020 BMW X6 3.0 40d MHT M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 40d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2020
• Mileage: 88,541 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X6 M Sport has covered 88,541 miles, around 38,600 more miles than is typical for its age. Its asking price of £31,990 is £2,091 above the AskCar estimate of £29,899. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. Since we first spotted the advert 51 days ago, the asking price has dropped by £1,000. The government's MOT record matches its advertised mileage. It is advertised by Motor Gurus in Sheffield. 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: £2,091 (6%) over the AskCar estimate of £29,899.

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 547 priced BMW X6 adverts across different ages and specifications, as of 5 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 5 November 2026.

Time on sale

This 2020 BMW X6 has been on sale for at least 51 days.

Price history

AskCar first saw this advert on 15 September 2026 at £32,990. Its asking price is now £31,990, £1,000 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 15 September 2026: £32,990
• 16 October 2026: £31,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 20 November 2026.

It has had 3 MOTs. The latest, on 21 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 81,949 miles, which matches the advertised 88,541 miles.

Advertised mileage is about 38,600 miles higher than the median mileage of a 2020 BMW X6 on AskCar.

Similar cars

18 other 2020 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £27,495 to £41,991, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 90,416 miles. Price: £27,495, £4,495 less than this car. Dealer: James Richards Car Sales in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-09f855cfdc1c
• 2020 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 73,391 miles. Price: £31,495, £495 less than this car. Dealer: Euroway Leisure in Bradford. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-595ed195391e
• 2020 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 72,400 miles. Price: £30,995, £995 less than this car. Dealer: Northbank Prestige & Performance in Droitwich Spa. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-951c79a15ba7

• The nearest: 2020 BMW X6 M Sport, 3.0 diesel SUV, green, 29 miles from this car. Mileage: 36,171 miles. Price: £41,991, £10,001 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-cfcf687a3f63