2020 BMW X3 2.0 20d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2020
• Mileage: 70,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X3 M Sport has covered 70,000 miles, around 18,000 more miles than is typical for its age. The dealer is asking £21,425, which is £971 above the AskCar estimate of £20,454. To work out the AskCar estimate, we analyse UK dealer adverts for 3,076 BMW X3 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 148 days, and its asking price is down £463. It is advertised by West Kent Motor Group Online in Sevenoaks. 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: £971 (4%) over the AskCar estimate of £20,454.

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 3,076 priced BMW X3 adverts across different ages and specifications, as of 5 November 2026.

A 2020 BMW X3 with the 2.0 diesel engine is typically advertised at £22,200: the median of the 100 for sale on AskCar, as of 5 November 2026.

Time on sale

The dealer may accept less. This 2020 BMW X3 has been on sale for at least 148 days, and its asking price has been cut by £463. About 6 in 10 of 2020 BMW X3 cars are gone from sale within a month of being advertised: 132 of the 237 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 10 June 2026 at £21,888. Its asking price is now £21,425, £463 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 26 June 2026: £21,888
• 1 July 2026: £21,788
• 3 July 2026: £21,750
• 12 July 2026: £21,700
• 13 July 2026: £21,688
• 19 July 2026: £21,650
• 21 July 2026: £21,988
• 30 September 2026: £21,888
• 5 October 2026: £21,788
• 16 October 2026: £21,750
• 22 October 2026: £21,688
• 23 October 2026: £21,675
• 25 October 2026: £21,650
• 26 October 2026: £21,625
• 31 October 2026: £21,488
• 3 November 2026: £21,450
• 5 November 2026: £21,425

Mileage and MOT

Advertised mileage is about 18,000 miles higher than the median mileage of a 2020 BMW X3 on AskCar.

Similar cars

69 other 2020 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,499 to £28,295, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 70,000 miles. Price: £21,995, £570 more than this car. Dealer: Aspire Automotive in Rayleigh. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-f7497a92804f
• 2020 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 68,888 miles. Price: £20,889, £536 less than this car. Dealer: The Motorworks in Rotherham. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-2eec4c86a47f
• 2020 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 68,873 miles. Price: £21,990, £565 more than this car. Dealer: Vertu Honda Morpeth in Morpeth. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-1a0e07187e52

• The nearest: 2020 BMW X3 M Sport, 2.0 diesel SUV, silver, 15 miles from this car. Mileage: 21,182 miles. Price: £24,930, £3,505 more than this car. Dealer: Big Motoring World Wimbledon in Wimbledon. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-04e931e82c92