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

46,500 miles

Year

2021

Fuel type

Petrol

Body type

SUV

Engine

3.0 L

Gearbox

Automatic

Power

503 bhp

Seats

5

CO2

262 g/km

Colour

Grey

Doors

5

Driven wheels

Four Wheel Drive

Engine badge

Competition

Emissions standard

Euro 6

About this car

With 46,500 miles on the clock, this 2021 BMW X3 M Competition has done roughly 8,900 more miles than a typical 2021 BMW X3 M. The dealer is asking £43,999, which is £1,545 below our market estimate of £45,544. Our estimate draws on 129 BMW X3 M adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 25 days ago. Its recorded MOT is valid until 9 February 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Dick Lovett Porsche Centre Swindon, based in Swindon.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £45,544. The asking price is £1,545 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 129 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 8,900 miles higher than typical for a 2021 BMW X3 M.

The advertised mileage is consistent with the last MOT reading.