2021 BMW X3 M 3.0 Competition
Price: £52,000. Fair price: £2,661 (5%) over the AskCar estimate of £49,339, 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: 28,563 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
With 28,563 miles on the clock, this 2021 BMW X3 M Competition has done roughly 5,400 fewer miles than a typical 2021 BMW X3 M. The dealer is asking £52,000, which is £2,661 above the AskCar estimate of £49,339. 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 161 days ago. You can find this car at Seaton Car Sales in Hartlepool. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 5 November 2026.
Price
Fair price: £2,661 (5%) over the AskCar estimate of £49,339.
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 161 days.
Price history
AskCar first saw this advert on 28 May 2026 at £52,000. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 5,400 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, blue. Mileage: 27,651 miles. Price: £47,399, £4,601 less than this car. Dealer: Prestige Car Supermarket in York. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-c990f786ac52
- 2021 BMW X3 M Competition, 3.0 petrol SUV, black. Mileage: 30,200 miles. Price: £42,990, £9,010 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, £2,995 more than this car. Dealer: Eminent Motor Group in Oldham. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-9b607e2890bc
- The nearest: 2021 BMW X3 M Competition, 3.0 petrol SUV, grey, 29 miles from this car. Mileage: 37,633 miles. Price: £44,491, £7,509 less than this car. Dealer: David James in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x3-m-2021-3c969078d813
Browse all BMW X3 M cars for sale · 2021 BMW X3 M price guide
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Photos
64 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.