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: 24,800 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 248 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 24,800 miles on the clock, this 2021 BMW X3 M Competition has done roughly 9,200 fewer miles than a typical 2021 BMW X3 M. The dealer is asking £54,995, which is £4,782 above the AskCar estimate of £50,213. To work out the AskCar estimate, we analyse UK dealer adverts for 128 BMW X3 M cars across different ages and specifications. Since we first spotted the advert 28 days ago, the asking price has dropped by £3,000. Its advertised mileage matches the government's MOT record. You can find this car at Eminent Motor Group in Oldham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £4,782 (9%) over the AskCar estimate of £50,213.

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 4 November 2026.

A 2021 BMW X3 M with the 3.0 petrol engine is typically advertised at £46,700: the median of the 24 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW X3 M has been on sale for at least 28 days.

Price history

AskCar first saw this advert on 7 October 2026 at £57,995. Its asking price is now £54,995, £3,000 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

• 7 October 2026: £57,995
• 25 October 2026: £54,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 29 March 2027.

It has had 4 MOTs. The latest, on 30 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 20,437 miles, which matches the advertised 24,800 miles.

Advertised mileage is about 9,200 miles lower than the median mileage of a 2021 BMW X3 M on AskCar.

Similar cars

20 other 2021 BMW X3 M Competition 3.0 petrol automatic SUVs are for sale at UK dealers, from £39,995 to £54,000, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 24,000 miles. Price: £52,989, £2,006 less than this car. Dealer: J.L.A.N Motor Group in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-11b67be7742a
• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 23,000 miles. Price: £45,995, £9,000 less than this car. Dealer: Caledonia Vehicle Solutions in Ayr. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-c899b1adf5c0
• 2021 BMW X3 M Competition, 3.0 petrol SUV, blue. Mileage: 27,651 miles. Price: £47,499, £7,496 less than this car. Dealer: Prestige Car Supermarket in York. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-c990f786ac52

• The nearest: 2021 BMW X3 M Competition, 3.0 petrol SUV, grey, 1 miles from this car. Mileage: 35,000 miles. Price: £53,949, £1,046 less than this car. Dealer: A1 Ortos in Oldham. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-06937dc39cc7