2020 BMW X3 3.0 30d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
• Year: 2020
• Mileage: 72,199 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 72,199 miles on the clock, this 2020 BMW X3 M Sport has done roughly 20,200 more miles than a typical 2020 BMW X3. The dealer is asking £22,490, which is £448 below the AskCar estimate of £22,938. To work out the AskCar estimate, we analyse UK dealer adverts for 3,033 BMW X3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 82 days, and its asking price has been cut by £500. Its advertised mileage matches the government's MOT record. It is advertised by Auto Unit in Newport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £448 (1%) under the AskCar estimate of £22,938.

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 3,033 priced BMW X3 adverts across different ages and specifications, as of 8 November 2026.

A 2020 BMW X3 with the 3.0 diesel engine is typically advertised at £30,000: the median of the 29 for sale on AskCar, as of 8 November 2026.

Time on sale

The dealer may accept less. This 2020 BMW X3 has been on sale for at least 82 days, and its asking price has been cut by £500. About 6 in 10 of 2020 BMW X3 cars are gone from sale within a month of being advertised: 135 of the 245 first advertised between 11 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 18 August 2026 at £22,990. Its asking price is now £22,490, £500 less. The latest price cut was seen on 17 September 2026.

Price changes recorded:

• 18 August 2026: £22,990
• 17 September 2026: £22,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 21 April 2027.

It failed its MOT on 2 April 2026 (offside front brake hose excessively chafed) and passed 5 days later, on 7 April 2026.

There were no advisories at the latest test.

Mileage at that test: 67,421 miles, which matches the advertised 72,199 miles.

Advertised mileage is about 20,200 miles higher than the median mileage of a 2020 BMW X3 on AskCar.

Similar cars

8 other 2020 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £22,990 to £29,490, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Sport, 3.0 diesel SUV, white. Mileage: 60,089 miles. Price: £22,990, £500 more than this car. Dealer: Cars in MK in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-3914ac802c98
• 2020 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 53,400 miles. Price: £24,950, £2,460 more than this car. Dealer: J.A. Jarvis in Fernhurst. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-e092cb035a89
• 2020 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 53,310 miles. Price: £27,995, £5,505 more than this car. Dealer: Merc Autobarn in Hayes. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-2767c32039fb

• The nearest: 2020 BMW X3 M Sport, 3.0 diesel SUV, black, 96 miles from this car. Mileage: 37,687 miles. Price: £27,995, £5,505 more than this car. Dealer: Hamptons of Surrey in Farnham. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-13d1b0729483