2021 BMW X6 M 4.4 i V8 Competition

Overview

• Make: BMW
• Model: X6 M
• Trim: Competition
• Version: 4.4 i V8 Competition Auto 4WD Euro 6 (s/s) 5dr (616 bhp)
• Year: 2021
• Mileage: 45,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 4.4 litres, 616 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 303 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X6 M Competition is advertised with 45,000 miles on the clock. The dealer is asking £69,995, which is £14,845 above the AskCar estimate of £55,150. To work out the AskCar estimate, we analyse UK dealer adverts for 53 BMW X6 M cars across different ages and specifications. It first appeared in our advert records 159 days ago. The last MOT shows 46,259 miles, more than the advert. This is worth checking with the dealer. Its MOT is recorded as valid until 18 February 2027. It is for sale at AH Specialist Cars in Watford. 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

Above the going rate: £14,845 (26%) over the AskCar estimate of £55,150.

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 53 priced BMW X6 M adverts across different ages and specifications, as of 5 November 2026.

Time on sale

This 2021 BMW X6 M has been on sale for at least 159 days.

Price history

AskCar first saw this advert on 30 May 2026 at £64,995. Its asking price is now £69,995, £5,000 more.

Price changes recorded:

• 30 May 2026: £64,995
• 14 October 2026: £69,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 18 February 2027.

It has had 4 MOTs. The latest, on 19 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,259 miles. The advert says 45,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 15,500 miles higher than the median mileage of a 2021 BMW X6 M on AskCar.

Similar cars

8 other 2021 BMW X6 M Competition 4.4 petrol automatic SUVs are for sale at UK dealers, from £48,500 to £66,990, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X6 M Competition, 4.4 petrol SUV. Mileage: 34,150 miles. Price: £66,990, £3,005 less than this car. Dealer: George Gehdu Cars in Broxbourne. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2021-c69b107bb032
• 2021 BMW X6 M Competition, 4.4 petrol SUV, black. Mileage: 34,000 miles. Price: £61,000, £8,995 less than this car. Dealer: Brooklyns in Broxbourne. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2021-6e480af6f889
• 2021 BMW X6 M Competition, 4.4 petrol SUV, red. Mileage: 25,101 miles. Price: £52,724, £17,271 less than this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2021-93e39f73a5ad

• The nearest: 2021 BMW X6 M Competition, 4.4 petrol SUV, blue, 1 miles from this car. Mileage: 23,000 miles. Price: £61,885, £8,110 less than this car. Dealer: Wembley Prestige Cars in Watford. AskCar page: https://askcar.co.uk/car/bmw-x6-m-2021-366fc6d6280b