2021 BMW X6 3.0 30d MHT M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 30d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (282 bhp)
• Year: 2021
• Mileage: 46,701 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 177 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X6 M Sport is advertised with 46,701 miles on the clock. Its asking price of £36,480 is £1,545 below the AskCar estimate of £38,025. The AskCar estimate draws on 547 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 155 days ago. Its asking price has since fallen by £3,010. The government's MOT record matches its advertised mileage. You can find this car at Phantom Motor Company in Wigan. 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

Fair price: £1,545 (4%) under the AskCar estimate of £38,025.

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 2021 BMW X6 with the 3.0 diesel engine is typically advertised at £37,900: the median of the 40 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW X6 has been on sale for at least 155 days.

Price history

AskCar first saw this advert on 3 June 2026 at £39,490. Its asking price is now £36,480, £3,010 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 4 June 2026: £39,490
• 7 July 2026: £38,990
• 25 July 2026: £38,490
• 20 August 2026: £37,980
• 12 September 2026: £37,480
• 24 September 2026: £36,980
• 21 October 2026: £36,480

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 November 2026.

It has had 2 MOTs. The latest, on 13 November 2025, passed.

Advisories at the latest test: under trays fitted.

Mileage at that test: 43,407 miles, which matches the advertised 46,701 miles.

Advertised mileage is about 700 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 £43,500, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 46,450 miles. Price: £35,400, £1,080 less than this car. Dealer: Sytner Select Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-ffec2b6aab47
• 2021 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 47,400 miles. Price: £38,489, £2,009 more than this car. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-7b6747230280
• 2021 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 46,000 miles. Price: £37,650, £1,170 more than this car. Dealer: Autoscout 48 in Hemel Hempstead. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-20c3b8f63e36

• The nearest: 2021 BMW X6 M Sport, 3.0 diesel SUV, blue, under a mile from this car. Mileage: 33,328 miles. Price: £39,980, £3,500 more than this car. Dealer: Phantom Motor Company in Hindley Green. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-063edad623f3