2023 BMW X6 3.0 M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 MHT M Sport Auto 4WD Euro 6 (s/s) 5dr
• Year: 2023
• Mileage: 36,785 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 178 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 BMW X6 M Sport is advertised with 36,785 miles, approximately 5,800 above the typical mileage for its age. The dealer is asking £43,950, which is £1,291 below the AskCar estimate of £45,241. To work out the AskCar estimate, we analyse UK dealer adverts for 544 BMW X6 cars across different ages and specifications. We have tracked this advert today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Cotswold Bmw Cheltenham, based in Cheltenham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,291 (2%) under the AskCar estimate of £45,241.

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 544 priced BMW X6 adverts across different ages and specifications, as of 14 November 2026.

A 2023 BMW X6 with the 3.0 diesel engine is typically advertised at £47,000: the median of the 37 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2023 BMW X6 advertised today. About 3 in 10 of 2023 BMW X6 cars are gone from sale within a month of being advertised: 16 of the 52 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 14 November 2026 at £43,950. 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 14 November 2026: valid until 15 February 2027.

It has had one MOT, on 16 February 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 30,910 miles, which matches the advertised 36,785 miles.

Advertised mileage is about 5,800 miles higher than the median mileage of a 2023 BMW X6 on AskCar.

Similar cars

27 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 14 November 2026.

The 3 closest to this car in mileage:

• 2023 BMW X6 M Sport, 3.0 diesel SUV, white. Mileage: 36,512 miles. Price: £42,500, £1,450 less than this car. Dealer: Marshall Volvo Derby in Derby. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-d3dccbb3798f
• 2023 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 36,359 miles. Price: £39,495, £4,455 less than this car. Dealer: Beck Evans in Sidcup. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-65aaa28325ef
• 2023 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 37,810 miles. Price: £48,990, £5,040 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, black, 37 miles from this car. Mileage: 28,715 miles. Price: £39,995, £3,955 less than this car. Dealer: North Oxford Bmw in Oxford. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-3aaa8fae0c14