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: 71,472 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X6 M Sport has covered 71,472 miles, around 24,100 more miles than is typical for its age. The dealer is asking £32,995, which is £3,233 below the AskCar estimate of £36,228. To work out the AskCar estimate, we analyse UK dealer adverts for 547 BMW X6 cars across different ages and specifications. The asking price is now £755 lower than when we first recorded the advert 43 days ago. MOT records show an expiry date of 15 May 2027. The seller is Lookers, based in Newtownards. 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

Good value: £3,233 (8%) under the AskCar estimate of £36,228.

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

This 2021 BMW X6 has been on sale for at least 43 days.

Price history

AskCar first saw this advert on 22 September 2026 at £33,750. Its asking price is now £32,995, £755 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 22 September 2026: £33,750
• 29 September 2026: £33,499
• 14 October 2026: £33,495
• 28 October 2026: £32,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 15 May 2027.

Advertised mileage is about 24,100 miles higher 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 £43,500, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 69,515 miles. Price: £34,480, £1,485 more than this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-8405768d3033
• 2021 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 73,788 miles. Price: £36,649, £3,654 more than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-a569d2f3f08e
• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 68,825 miles. Price: £32,495, £500 less than this car. Dealer: Stoneacre in Worksop. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-eb2726961d59

• The nearest: 2021 BMW X6 M Sport, 3.0 diesel SUV, blue, 147 miles from this car. Mileage: 33,328 miles. Price: £39,980, £6,985 more than this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-063edad623f3