2020 BMW X6 3.0 M50d Sport

Overview

• Make: BMW
• Model: X6
• Trim: Sport
• Version: 3.0 M50d Sport Auto 4WD Euro 6 5dr (394 bhp)
• Year: 2020
• Mileage: 56,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 394 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 216 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X6 Sport is advertised with 56,000 miles, approximately 6,100 above the typical mileage for its age. The dealer is asking £37,989, which is £4,004 above the AskCar estimate of £33,985. 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 83 days ago. Its asking price has since fallen by £1,961. Our records show an MOT expiry date of 28 October 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Best4U Motors, based in Brentwood. 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

Above the going rate: £4,004 (11%) over the AskCar estimate of £33,985.

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 83 days.

Price history

AskCar first saw this advert on 14 August 2026 at £39,950. Its asking price is now £37,989, £1,961 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 9 October 2026: £39,950
• 26 October 2026: £38,888
• 4 November 2026: £37,989

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 28 October 2026; ask the dealer for the current MOT.

It has had 4 MOTs. The latest, on 29 October 2025, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt; nearside front tyre worn close to legal limit/worn on edge edges; offside front tyre worn close to legal limit/worn on edge edges.

Mileage at that test: 50,737 miles, which matches the advertised 56,000 miles.

Advertised mileage is about 6,100 miles higher than the median mileage of a 2020 BMW X6 on AskCar.

Similar cars

1 other 2020 BMW X6 Sport 3.0 diesel automatic SUV is for sale at UK dealers, as of 5 November 2026.

The closest to this car in mileage:

• 2020 BMW X6 Sport, 3.0 diesel SUV, blue. Mileage: 49,000 miles. Price: £57,990, £20,001 more than this car. Dealer: Nimco Prestige in Skipton. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-0583e50bb799