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: 83,876 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 83,876 miles, this 2021 BMW X6 M Sport has covered about 37,300 more miles than other 2021 BMW X6 cars. Priced at £33,995, it is advertised £226 above the AskCar estimate of £33,769. The AskCar estimate draws on 536 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by KAYENN Prestige in Heywood. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £226 (under 1%) over the AskCar estimate of £33,769.

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 536 priced BMW X6 adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW X6 with the 3.0 diesel engine is typically advertised at £37,700: the median of the 36 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2021 BMW X6 advertised today.

Price history

AskCar first saw this advert on 2 November 2026 at £33,995. 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 2 November 2026: valid until 15 September 2027.

It has had 3 MOTs. The latest, on 16 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 82,447 miles, which matches the advertised 83,876 miles.

Advertised mileage is about 37,300 miles higher than the median mileage of a 2021 BMW X6 on AskCar.

Similar cars

28 other 2021 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £31,004 to £42,950, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 83,250 miles. Price: £36,440, £2,445 more than this car. Dealer: FTR Performance in Tring. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-514765d1bd8b
• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 85,010 miles. Price: £31,004, £2,991 less than this car. Dealer: cartime Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-0b1ea27aff33
• 2021 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 81,956 miles. Price: £31,080, £2,915 less than this car. Dealer: Evans Halshaw Ford Hull East in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-4b2072a58e57