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: 27,651 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 247 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Competition is advertised with 27,651 miles, approximately 6,300 below the typical mileage for its age. The AskCar estimate for this car is £49,530. It is priced at £47,399, which is £2,131 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 130 BMW X3 M cars across different ages and specifications. The asking price is now £2,600 lower than when we first recorded the advert 101 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Prestige Car Supermarket in York. 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: £2,131 (4%) under the AskCar estimate of £49,530.

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

Time on sale

This 2021 BMW X3 M has been on sale for at least 101 days.

Price history

AskCar first saw this advert on 27 July 2026 at £49,999. Its asking price is now £47,399, £2,600 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 28 July 2026: £49,999
• 6 August 2026: £52,799
• 12 August 2026: £49,999
• 29 October 2026: £47,999
• 4 November 2026: £47,499
• 5 November 2026: £47,399

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 4 January 2027.

It failed its MOT on 23 December 2025 (offside front tyre(s) of different sizes are fitted on the same axle) and passed 13 days later, on 5 January 2026.

There were no advisories at the latest test.

Mileage at that test: 25,484 miles, which matches the advertised 27,651 miles.

Advertised mileage is about 6,300 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 £54,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 28,563 miles. Price: £52,000, £4,601 more than this car. Dealer: Seaton Car Sales in Hartlepool. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-d6ecdc0aca9e
• 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 30,200 miles. Price: £42,990, £4,409 less than this car. Dealer: Park Road Garage in Bedford. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-24a6a8d0e57f
• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 24,800 miles. Price: £54,995, £7,596 more than this car. Dealer: Eminent Motor Group in Oldham. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-9b607e2890bc