2021 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: 2021
• Mileage: 51,600 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 51,600 miles, this 2021 BMW X6 M Sport has covered about 3,200 more miles than other 2021 BMW X6 cars. Its asking price of £38,999 is £1,681 below the AskCar estimate of £40,680. The AskCar estimate uses 547 UK dealer adverts for the BMW X6, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 2 days ago. The government's MOT record matches its advertised mileage. You can find this car at Phoenix RC in Huddersfield. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,681 (4%) under the AskCar estimate of £40,680.

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 6 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 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW X6 advertised 2 days ago.

Price history

AskCar first saw this advert on 4 November 2026 at £38,999. 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 6 November 2026: valid until 12 December 2026.

It has had 3 MOTs. The latest, on 13 December 2025, passed.

Advisories at the latest test: nearside front brake disc worn, pitted or scored, but not seriously weakened; offside front brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 44,272 miles, which matches the advertised 51,600 miles.

Advertised mileage is about 3,200 miles higher than the median mileage of a 2021 BMW X6 on AskCar.

Similar cars

30 other 2021 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £29,999 to £43,500, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 51,915 miles. Price: £40,599, £1,600 more than this car. Dealer: Stratstone Bmw Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-c3b913303d95
• 2021 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 49,500 miles. Price: £37,495, £1,504 less than this car. Dealer: Performance Hub MCR in Hyde. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-7723d3edda88
• 2021 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 47,400 miles. Price: £38,489, £510 less than this car. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-7b6747230280

• The nearest: 2021 BMW X6 M Sport, 3.0 diesel SUV, green, under a mile from this car. Mileage: 64,900 miles. Price: £37,490, £1,509 less than this car. Dealer: Hitchfields in Huddersfield. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-d8b89ca23fd5