2020 BMW X6 3.0 30d M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
• Year: 2020
• Mileage: 35,600 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 203 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 35,600 miles, this 2020 BMW X6 M Sport has covered about 14,100 fewer miles than other 2020 BMW X6 cars. The dealer is asking £39,995, which is £1,030 above the AskCar estimate of £38,965. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. We first saw this car advertised 160 days ago. Its asking price has since fallen by £3,000. Our records show an MOT expiry date of 5 September 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. You can find this car at S & R Motors in Swindon. 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: £1,030 (2%) over the AskCar estimate of £38,965.

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 4 November 2026.

A 2020 BMW X6 with the 3.0 diesel engine is typically advertised at £36,100: the median of the 40 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 BMW X6 has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £42,995. Its asking price is now £39,995, £3,000 less. The latest price cut was seen on 30 June 2026.

Price changes recorded:

• 28 May 2026: £42,995
• 17 June 2026: £42,495
• 30 June 2026: £39,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 5 September 2026; ask the dealer for the current MOT.

It failed its MOT on 4 September 2025 (supplementary restraint system warning lamp indicates a fault; windscreen washer not working) and passed 2 days later, on 6 September 2025.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing inner sidewall cut.

Mileage at that test: 30,330 miles, which matches the advertised 35,600 miles.

Advertised mileage is about 14,100 miles lower than the median mileage of a 2020 BMW X6 on AskCar.

Similar cars

19 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 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 35,212 miles. Price: £40,000, the same price as this car. Dealer: John Clark BMW Tayside in Dundee. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-93204fb77357
• 2020 BMW X6 M Sport, 3.0 diesel SUV, green. Mileage: 36,171 miles. Price: £41,991, £1,996 more than this car. Dealer: Your Next Car in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-cfcf687a3f63
• 2020 BMW X6 M Sport, 3.0 diesel SUV. Mileage: 44,076 miles. Price: £36,203, £3,792 less than this car. Dealer: Vines of Redhill BMW in Redhill. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-05520ec695c9

• The nearest: 2020 BMW X6 M Sport, 3.0 diesel SUV, white, 52 miles from this car. Mileage: 72,400 miles. Price: £30,995, £9,000 less than this car. Dealer: Northbank Prestige & Performance in Droitwich Spa. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-951c79a15ba7