2021 BMW X3 3.0 M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 MHT M Sport Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 66,013 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 167 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport is advertised with 66,013 miles, approximately 18,200 above the typical mileage for its age. The AskCar estimate for this car is £25,936. It is priced at £26,490, which is £554 above that estimate. The AskCar estimate draws on 3,049 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. We checked its advertised mileage against the government's MOT record, and they match. The seller is Lloyd Colne BMW, based in Colne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £554 (2%) over the AskCar estimate of £25,936.

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 3,049 priced BMW X3 adverts across different ages and specifications, as of 12 November 2026.

A 2021 BMW X3 with the 3.0 diesel engine is typically advertised at £31,100: the median of the 38 for sale on AskCar, as of 12 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: 154 of the 334 first advertised between 13 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 12 November 2026 at £26,490. 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 12 November 2026: valid until 30 July 2027.

It has had 3 MOTs. The latest, on 21 July 2026, passed.

Advisories at the latest test: under trays fitted.

Mileage at that test: 59,439 miles, which matches the advertised 66,013 miles.

Advertised mileage is about 18,200 miles higher than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

15 other 2021 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £19,990 to £35,900, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 3.0 diesel SUV, white. Mileage: 64,500 miles. Price: £26,992, £502 more than this car. Dealer: Stratstone Bmw Hull in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-18aa906e2f6e
• 2021 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 68,475 miles. Price: £25,995, £495 less than this car. Dealer: Car Brothers NI in Newtownabbey. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-d92113c59cf1
• 2021 BMW X3 M Sport, 3.0 diesel SUV, silver. Mileage: 72,988 miles. Price: £26,495, the same price as this car. Dealer: Josh Houghton Motor Company in Wigan. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-885b8c3834b2

• The nearest: 2021 BMW X3 M Sport, 3.0 diesel SUV, white, 21 miles from this car. Mileage: 82,200 miles. Price: £25,300, £1,190 less than this car. Dealer: GS Car Centre in Preston. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-2b5c5c41b007