2021 BMW X3 2.0 20i M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20i GPF M Sport Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2021
• Mileage: 40,828 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 166 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport has covered 40,828 miles, around 7,000 fewer miles than is typical for its age. The dealer is asking £25,499, which is £289 below the AskCar estimate of £25,788. To work out the AskCar estimate, we analyse UK dealer adverts for 3,099 BMW X3 cars across different ages and specifications. This car was first seen in our listings data today. The government's MOT record matches its advertised mileage. You can find this car at N.m.j. Motorhouse in Milton Keynes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £289 (1%) under the AskCar estimate of £25,788.

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 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW X3 with the 2.0 petrol engine is typically advertised at £24,500: the median of the 181 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised today. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 144 of the 310 first advertised between 13 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £25,499. 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 6 November 2026: valid until 11 September 2027.

It has had 3 MOTs. The latest, on 12 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,287 miles, which matches the advertised 40,828 miles.

Advertised mileage is about 7,000 miles lower than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

27 other 2021 BMW X3 M Sport 2.0 petrol automatic SUVs are for sale at UK dealers, from £20,499 to £32,998, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 petrol SUV, white. Mileage: 42,100 miles. Price: £23,995, £1,504 less than this car. Dealer: FJ Chalke - Nissan, Yeovil in Yeovil. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-14a70a4a96c1
• 2021 BMW X3 M Sport, 2.0 petrol SUV, black. Mileage: 42,423 miles. Price: £26,446, £947 more than this car. Dealer: Maranello Performance in Stapleford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-d9c68cbbf082
• 2021 BMW X3 M Sport, 2.0 petrol SUV, white. Mileage: 42,900 miles. Price: £27,099, £1,600 more than this car. Dealer: Lookers BMW Stoke-On-Trent in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-54b2037e0a70

• The nearest: 2021 BMW X3 M Sport, 2.0 petrol SUV, white, 22 miles from this car. Mileage: 36,643 miles. Price: £27,495, £1,996 more than this car. Dealer: Sytner Tring BMW in Tring. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-571d65733c5a