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: 24,000 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 24,000 miles, this 2023 BMW X6 M Sport has covered about 4,300 fewer miles than other 2023 BMW X6 cars. The AskCar estimate for this car is £51,769. It is priced at £49,990, which is £1,779 below that estimate. The AskCar estimate draws on 547 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 18 days ago. Its advertised mileage matches the government's MOT record. You can find this car at A2B Performance in Kings Langley. 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: £1,779 (3%) under the AskCar estimate of £51,769.

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

This 2023 BMW X6 has been on sale for at least 18 days.

Price history

AskCar first saw this advert on 18 October 2026 at £48,950. Its asking price is now £49,990, £1,040 more.

Price changes recorded:

• 18 October 2026: £48,950
• 23 October 2026: £48,990
• 26 October 2026: £49,990

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 April 2027.

It has had one MOT, on 30 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 21,751 miles, which matches the advertised 24,000 miles.

Advertised mileage is about 4,300 miles lower 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, grey. Mileage: 23,946 miles. Price: £51,490, £1,500 more than this car. Dealer: Lloyd Land Rover Newcastle in Tynemouth. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-90e47cb29825
• 2023 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 23,575 miles. Price: £46,995, £2,995 less than this car. Dealer: Park's Motor Group Douglas Park BMW Hamilton in Hamilton. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-73723b5d08a0
• 2023 BMW X6 M Sport, 3.0 diesel SUV, blue. Mileage: 23,272 miles. Price: £45,475, £4,515 less than this car. Dealer: Listers in Boston. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-a078ab24e738

• The nearest: 2023 BMW X6 M Sport, 3.0 diesel SUV, black, 5 miles from this car. Mileage: 31,000 miles. Price: £45,495, £4,495 less than this car. Dealer: Evo Motor Group in Watford. AskCar page: https://askcar.co.uk/car/bmw-x6-2023-223dc66bfad1