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: 53,000 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Competition is advertised with 53,000 miles, approximately 19,000 above the typical mileage for its age. Its asking price of £43,495 is £84 above the AskCar estimate of £43,411. The AskCar estimate draws on 130 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 40 days. It is advertised by Sharman Group in Manchester. 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: £84 (under 1%) over the AskCar estimate of £43,411.

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 40 days.

Price history

AskCar first saw this advert on 26 September 2026 at £43,495. Its asking price has not changed.

Mileage and MOT

Advertised mileage is about 19,000 miles higher 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: 52,000 miles. Price: £52,488, £8,993 more than this car. Dealer: Auto Group in Wembley. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-b7782500a611
• 2021 BMW X3 M Competition, 3.0 petrol SUV, grey. Mileage: 57,000 miles. Price: £41,995, £1,500 less than this car. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-834a924c2e65
• 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 58,443 miles. Price: £49,995, £6,500 more than this car. Dealer: Money for Motors North East in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-ef8ca367d0e9

• The nearest: 2021 BMW X3 M Competition, 3.0 petrol SUV, black, under a mile from this car. Mileage: 33,500 miles. Price: £46,495, £3,000 more than this car. Dealer: Sharman Group in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-f452838e01c7