2021 BMW X3 M

Overview

Make

BMW

Model

X3 M

Trim

COMPETITION

Version

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

Mileage

31,300 miles

Year

2021

Fuel type

Petrol

Body type

SUV

Engine

3.0 L

Gearbox

Automatic

Power

503 bhp

Seats

5

CO2

248 g/km

Colour

Blue

Doors

5

Driven wheels

Four Wheel Drive

Engine badge

Competition

Emissions standard

Euro 6

About this car

This 2021 BMW X3 M Competition is advertised with 31,300 miles, approximately 7,500 below the typical mileage for its age. The dealer is asking £54,500, which is £5,219 above our market estimate of £49,281. Our estimate draws on 130 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 68 days ago. Its asking price has since fallen by £495. Our records show an MOT expiry date of 1 October 2026, which has passed. Ask the dealer for an update. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is The Motor Gallery, based in Romford.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £49,281. The asking price is £5,219 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 130 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 7,500 miles lower than typical for a 2021 BMW X3 M.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.