2021 BMW X3 M

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

£42,990

Good value: £6,182 under the typical £49,172 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 i Competition Auto 4WD Euro 6 (s/s) 5dr (503 bhp)
Mileage
30,200 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
3.0 L
Gearbox
Automatic
Power
503 bhp
Seats
5
Colour
Black
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
Competition
Emissions standard
Euro 6

About this car

With 30,200 miles on the clock, this 2021 BMW X3 M Competition has done roughly 8,000 fewer miles than a typical 2021 BMW X3 M. The dealer is asking £42,990, which is £6,182 below our market estimate of £49,172. We use UK dealer asking prices, including 132 BMW X3 M listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 69 days ago, the asking price has dropped by £11,000. That history is worth bearing in mind when speaking to the dealer. The latest MOT record shows an expiry date of 1 July 2027, with the advertised mileage consistent with the recorded reading. It is for sale at Park Road Garage in Bedford.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 14 August 2026, 69 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £11,000 from the first recorded £53,990. 4 price reductions recorded, the latest observed on 20 September 2026.

Recorded asking prices
Date observedAsking price
14 August 2026£53,990
17 August 2026£49,990
22 August 2026£47,990
5 September 2026£44,990
20 September 2026£42,990
21 October 2026£42,990

Price and mileage comparison

Estimated market asking price: £49,172. The asking price is £6,182 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 132 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 8,000 miles lower than typical for a 2021 BMW X3 M.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 1 July 2027. 30,171 miles at the last test.

25 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
£41,99557,000 miles

These cars have covered 21,328–85,546 miles, compared with 30,200 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