2021 BMW X6 3.0 40i MHT M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 MHT M Sport Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 31,129 miles
• Fuel: Petrol, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 209 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X6 M Sport is advertised with 31,129 miles, approximately 17,300 below the typical mileage for its age. Its asking price of £42,476 is £835 below the AskCar estimate of £43,311. The AskCar estimate uses 547 UK dealer adverts for the BMW X6, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 7 days ago. Its asking price has since fallen by £500. The latest recorded MOT expiry date is 20 October 2026, which has passed. Confirm its status with the dealer. The government's MOT record matches its advertised mileage. 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 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £835 (1%) under the AskCar estimate of £43,311.

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 petrol engine is typically advertised at £37,900: the median of the 39 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 BMW X6 has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 30 October 2026 at £42,976. Its asking price is now £42,476, £500 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 30 October 2026: £42,976
• 6 November 2026: £42,476

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 20 October 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 21 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 22,830 miles, which matches the advertised 31,129 miles.

Advertised mileage is about 17,300 miles lower than the median mileage of a 2021 BMW X6 on AskCar.

Similar cars

4 other 2021 BMW X6 M Sport 3.0 petrol automatic SUVs are for sale at UK dealers, from £40,290 to £44,000, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Sport, 3.0 petrol SUV, green. Mileage: 32,286 miles. Price: £44,000, £1,524 more than this car. Dealer: Sytner Tring BMW in Tring. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-cc56957820a8
• 2021 BMW X6 M Sport, 3.0 petrol SUV, white. Mileage: 27,000 miles. Price: £41,890, £586 less than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-76d748faf9d7
• 2021 BMW X6 M Sport, 3.0 petrol SUV, grey. Mileage: 37,189 miles. Price: £40,993, £1,483 less than this car. Dealer: Partridge BMW in Eastleigh. AskCar page: https://askcar.co.uk/car/bmw-x6-2021-e65851833fbb