2021 BMW X3 M
3.0 M Competition Steptronic 4WD Euro 6 5dr (502 bhp)
£36,000
Fair price: within 8% of the typical £35,153 for this model, age and mileage, drawing on 132 adverts of this make and model.
Overview
- Make
- BMW
- Model
- X3 M
- Trim
- COMPETITION
- Version
- 3.0 M Competition Steptronic 4WD Euro 6 5dr (502 bhp)
- Mileage
- 85,546 miles
- Year
- 2021
- Fuel type
- Petrol
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 502 bhp
- Seats
- 5
- CO2
- 261 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Gearbox version
- Steptronic
- Engine badge
- Competition
- Emissions standard
- Euro 6
About this car
With 85,546 miles on the clock, this 2021 BMW X3 M Competition has done roughly 47,400 more miles than a typical 2021 BMW X3 M. At £36,000, it is advertised £847 above our estimated market asking price of £35,153. To estimate its market asking price, we analyse UK dealer adverts for 132 BMW X3 M cars across different ages and specifications. We first recorded this car for sale 3 days ago. Its MOT is recorded as valid until 28 January 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by Sytner Harold Wood BMW in Romford.
Stock data from 21 October 2026.
Price history
First seen on 20 October 2026, 3 days ago. Advert duration calculated on 23 October 2026.
| Date observed | Asking price |
|---|---|
| 20 October 2026 | £36,000 |
| 21 October 2026 | £36,000 |
Price and mileage comparison
Estimated market asking price: £35,153. The asking price is £847 above this estimate.
The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.
The pricing calculation includes 132 adverts of this make and model across different ages and specifications.
Advertised mileage is approximately 47,400 miles higher than typical for a 2021 BMW X3 M.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT valid until 28 January 2027. 71,165 miles at the last test.
25 other cars with the same year, trim, gearbox and fuel are for sale from £39,995 to £57,995.
| Asking price | Mileage |
|---|---|
| £39,995 | 60,994 miles |
| £39,995 | 62,137 miles |
| £40,995 | 47,300 miles |
| £41,995 | 57,000 miles |
| £42,060 | 43,979 miles |
These cars have covered 21,328–62,137 miles, compared with 85,546 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.
Browse all BMW X3 M cars for sale · 2021 BMW X3 M price guide
How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.