2021 BMW X6 3.0 M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 MHT M Sport Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 34,844 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,844 miles, this 2021 BMW X6 M Sport has covered about 12,600 fewer miles than other 2021 BMW X6 cars. The dealer is asking £43,500, which is £3,107 above the AskCar estimate of £40,393. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. It first appeared in our advert records today. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Prestige Cars Kent in Orpington. 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: £3,107 (7%) over the AskCar estimate of £40,393.

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 2021 BMW X6 with the 3.0 diesel engine is typically advertised at £37,900: the median of the 39 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 BMW X6 advertised today.

Price history

AskCar first saw this advert on 4 November 2026 at £43,500. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 22 June 2027.

It has had 3 MOTs. The latest, on 19 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 33,033 miles, which matches the advertised 34,844 miles.

Advertised mileage is about 12,600 miles lower than the median mileage of a 2021 BMW X6 on AskCar.

Similar cars

31 other 2021 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £29,999 to £42,950, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 diesel SUV, green. Mileage: 34,886 miles. Price: £39,491, £4,009 less than this car. Dealer: David James in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-e4a95e96899c
• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 35,610 miles. Price: £36,240, £7,260 less than this car. Dealer: Evans Halshaw Hyundai Warrington in Warrington. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-c26e7147b608
• 2021 BMW X6 M Sport, 3.0 diesel SUV. Mileage: 34,000 miles. Price: £37,895, £5,605 less than this car. Dealer: Prestige Performance (Yorkshire) in North Duffield. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-17855053ca5e

• The nearest: 2021 BMW X6 M Sport, 3.0 diesel SUV, 22 miles from this car. Mileage: 44,463 miles. Price: £39,671, £3,829 less than this car. Dealer: Berry Chiswick BMW in Ealing. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-c228e09efff6