2020 BMW X6 3.0 40i M Sport

Overview

• Make: BMW
• Model: X6
• Trim: M Sport
• Version: 3.0 40i M Sport Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2020
• Mileage: 42,900 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 185 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 42,900 miles, this 2020 BMW X6 M Sport has covered about 7,000 fewer miles than other 2020 BMW X6 cars. The AskCar estimate for this car is £38,371. It is priced at £34,490, which is £3,881 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 saw this car advertised 58 days ago. Its asking price has since fallen by £1,060. The government's MOT record matches its advertised mileage. It is for sale at K Motors London in New Malden. 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

Good value: £3,881 (10%) under the AskCar estimate of £38,371.

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 2020 BMW X6 with the 3.0 petrol engine is typically advertised at £36,000: the median of the 39 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW X6 has been on sale for at least 58 days.

Price history

AskCar first saw this advert on 8 September 2026 at £35,550. Its asking price is now £34,490, £1,060 less. The latest price cut was seen on 7 October 2026.

Price changes recorded:

• 8 September 2026: £35,550
• 29 September 2026: £34,990
• 7 October 2026: £34,490

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 July 2027.

It has had 5 MOTs. The latest, on 23 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,513 miles, which matches the advertised 42,900 miles.

Advertised mileage is about 7,000 miles lower than the median mileage of a 2020 BMW X6 on AskCar.

Similar cars

6 other 2020 BMW X6 M Sport 3.0 petrol automatic SUVs are for sale at UK dealers, from £30,500 to £39,650, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X6 M Sport, 3.0 petrol SUV, blue. Mileage: 41,000 miles. Price: £35,000, £510 more than this car. Dealer: Bespoke Automotive in Chelmsford. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-33c2bca87923
• 2020 BMW X6 M Sport, 3.0 petrol SUV, white. Mileage: 49,562 miles. Price: £35,000, £510 more than this car. Dealer: ESP Cars in Long Eaton. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-143d3841d101
• 2020 BMW X6 M Sport, 3.0 petrol SUV, grey. Mileage: 51,000 miles. Price: £33,975, £515 less than this car. Dealer: PCBS Sales in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-d920968878a3

• The nearest: 2020 BMW X6 M Sport, 3.0 petrol SUV, green, 6 miles from this car. Mileage: 51,227 miles. Price: £39,650, £5,160 more than this car. Dealer: Berry Croydon BMW in Croydon. AskCar page: https://askcar.co.uk/car/bmw-x6-2020-24722ddfb11a