2018 BMW X6 3.0 M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 M Sport Auto 4WD Euro 6 5dr
• Year: 2018
• Mileage: 44,608 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 183 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 44,608 miles, this 2018 BMW X6 M Sport has covered about 18,500 fewer miles than other 2018 BMW X6 cars. Its asking price of £24,000 is £684 below the AskCar estimate of £24,684. The AskCar estimate uses UK dealer asking prices, including 544 BMW X6 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Swansea MINI, based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £684 (2%) under the AskCar estimate of £24,684.

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 10 November 2026.

A 2018 BMW X6 with the 3.0 diesel engine is typically advertised at £21,600: the median of the 54 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2018 BMW X6 advertised today. About 4 in 10 of 2018 BMW X6 cars are gone from sale within a month of being advertised: 23 of the 64 first advertised between 14 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £24,000. 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 10 November 2026: valid until 19 April 2027.

It has had 7 MOTs. The latest, on 15 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,139 miles, which matches the advertised 44,608 miles.

Advertised mileage is about 18,500 miles lower than the median mileage of a 2018 BMW X6 on AskCar.

Similar cars

35 other 2018 BMW X6 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £13,995 to £29,995, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 44,000 miles. Price: £22,989, £1,011 less than this car. Dealer: Emaari Automotive in Croydon. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-5eddb7ec72ec
• 2018 BMW X6 M Sport, 3.0 diesel SUV, grey. Mileage: 46,036 miles. Price: £23,190, £810 less than this car. Dealer: Stratstone BMW Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-3920976aec9a
• 2018 BMW X6 M Sport, 3.0 diesel SUV, black. Mileage: 51,807 miles. Price: £21,990, £2,010 less than this car. Dealer: East Kilbride Used Car Centre in Glasgow. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-27876e8c967d

• The nearest: 2018 BMW X6 M Sport, 3.0 diesel SUV, black, 90 miles from this car. Mileage: 128,000 miles. Price: £14,988, £9,012 less than this car. Dealer: UP Prestige in Bridgnorth. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-a09314e1c6f5