2021 BMW X3 M 3.0 Competition

Overview

• Make: BMW
• Model: X3 M
• Trim: Competition
• Version: 3.0 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)
• Year: 2021
• Mileage: 40,647 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 261 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Competition is advertised with 40,647 miles, approximately 5,100 above the typical mileage for its age. Its asking price of £41,991 is £4,592 below the AskCar estimate of £46,583. To work out the AskCar estimate, we analyse UK dealer adverts for 128 BMW X3 M cars across different ages and specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. It is advertised by David James in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Good value: £4,592 (9%) under the AskCar estimate of £46,583.

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 128 priced BMW X3 M adverts across different ages and specifications, as of 7 November 2026.

A 2021 BMW X3 M with the 3.0 petrol engine is typically advertised at £46,200: the median of the 26 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 M advertised today.

Price history

AskCar first saw this advert on 7 November 2026 at £41,991. 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 7 November 2026: valid until 6 June 2027.

It has had 3 MOTs. The latest, on 26 May 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge cracked; front brake pad(s) wearing thin; rear brake pad(s) wearing thin.

Mileage at that test: 36,950 miles, which matches the advertised 40,647 miles.

Advertised mileage is about 5,100 miles higher than the median mileage of a 2021 BMW X3 M on AskCar.

Similar cars

23 other 2021 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £39,995 to £54,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 37,633 miles. Price: £44,491, £2,500 more than this car. Dealer: David James in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-3c969078d813
• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 43,979 miles. Price: £42,060, £69 more than this car. Dealer: Evans Halshaw Ford Coatbridge in Coatbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-419ac1562d89
• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 36,000 miles. Price: £49,995, £8,004 more than this car. Dealer: Evolve Motor Company in Newport. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-736b8869f497