2021 BMW X3 M 3.0 Competition
Price: £41,995. Fair price: £505 (1%) under the AskCar estimate of £42,500, our expected asking price for this car from its model, age, mileage and specification, drawing on 130 priced BMW X3 M adverts on AskCar as of 5 November 2026.
AskCar lists 130 used BMW X3 M from 112 UK dealerships, as of 5 November 2026.
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: 57,000 miles
- Fuel: Petrol
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 503 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 57,000 miles on the clock, this 2021 BMW X3 M Competition has done roughly 23,000 more miles than a typical 2021 BMW X3 M. The dealer is asking £41,995, which is £505 below the AskCar estimate of £42,500. To work out the AskCar estimate, we analyse UK dealer adverts for 130 BMW X3 M cars across different ages and specifications. We first recorded this car for sale 33 days ago. The seller is Southern Prestige Cars, based in Crawley. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £505 (1%) under the AskCar estimate of £42,500.
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 33 days.
Price history
AskCar first saw this advert on 3 October 2026 at £41,995. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 23,000 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: 58,443 miles. Price: £49,995, £8,000 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
- 2021 BMW X3 M Competition, 3.0 petrol SUV, white. Mileage: 60,994 miles. Price: £39,995, £2,000 less than this car. Dealer: Brook Cars Company in Telford. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-2f43815e1e07
- 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 53,000 miles. Price: £43,495, £1,500 more than this car. Dealer: Sharman Group in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-303d31bae200
- The nearest: 2021 BMW X3 M Competition, 3.0 petrol SUV, black, 28 miles from this car. Mileage: 52,000 miles. Price: £52,488, £10,493 more than this car. Dealer: Auto Group in Wembley. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-b7782500a611
Browse all BMW X3 M cars for sale · 2021 BMW X3 M price guide
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Photos
33 photos of this car are on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.