2023 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: 2023
• Mileage: 44,000 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Green
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW X6 M Sport is advertised with 44,000 miles, approximately 15,700 above the typical mileage for its age. The AskCar estimate for this car is £47,335. It is priced at £45,989, which is £1,346 below that estimate. The AskCar estimate uses UK dealer asking prices, including 547 BMW X6 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. The government's MOT record matches its advertised mileage. It is advertised by Blackstone Motors in White City. 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: £1,346 (2%) under the AskCar estimate of £47,335.

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 2023 BMW X6 with the 3.0 diesel engine is typically advertised at £48,600: the median of the 36 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2023 BMW X6 advertised today.

Price history

AskCar first saw this advert on 5 November 2026 at £45,989. 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 5 November 2026: valid until 23 March 2027.

It has had one MOT, on 17 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 41,199 miles, which matches the advertised 44,000 miles.

Advertised mileage is about 15,700 miles higher than the median mileage of a 2023 BMW X6 on AskCar.

Similar cars

26 other 2023 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £35,995 to £59,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 47,544 miles. Price: £39,899, £6,090 less than this car. Dealer: cinch in Grimsby. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-6f616cb30d49
• 2023 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 49,653 miles. Price: £43,327, £2,662 less than this car. Dealer: Bowker Motor Group in Preston. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-5bae5fd81d57
• 2023 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 37,810 miles. Price: £48,990, £3,001 more than this car. Dealer: Williams Bmw Rochdale in Rochdale. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-b965f3646394

• The nearest: 2023 BMW X6 M Sport, 3.0 diesel SUV, grey, 10 miles from this car. Mileage: 31,877 miles. Price: £52,995, £7,006 more than this car. Dealer: Berry Thames Ditton BMW in Thames Ditton. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-08557d2a088a