2021 BMW X3 M

3.0 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)

£41,995

Fair price: within 8% of the typical £42,738 for this model, age and mileage, drawing on 128 adverts of this make and model.

Overview

Make
BMW
Model
X3 M
Trim
COMPETITION
Version
3.0 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)
Mileage
57,000 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
3.0 L
Gearbox
Automatic
Power
503 bhp
Seats
5
Colour
Grey
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
Competition
Emissions standard
Euro 6

About this car

With 57,000 miles on the clock, this 2021 BMW X3 M Competition has done roughly 18,800 more miles than a typical 2021 BMW X3 M. The dealer is asking £41,995, which is £743 below our market estimate of £42,738. Our estimate draws on 128 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 20 days ago. The seller is Southern Prestige Cars, based in Crawley.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 3 October 2026, 20 days ago. Advert duration calculated on 23 October 2026.

Recorded asking prices
Date observedAsking price
3 October 2026£41,995
22 October 2026£41,995

Price and mileage comparison

Estimated market asking price: £42,738. The asking price is £743 below 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 128 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 18,800 miles higher than typical for a 2021 BMW X3 M.

23 other cars with the same year, trim, gearbox and fuel are for sale from £36,000 to £57,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£36,00085,546 miles
£39,99560,994 miles
£39,99562,137 miles
£40,99547,300 miles
£42,06043,979 miles

These cars have covered 23,000–85,546 miles, compared with 57,000 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.

Vehicle photos