2020 BMW X3 M

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

£34,999

Fair price: within 8% of the typical £34,734 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
79,000 miles
Year
2020
Fuel type
Petrol
Body type
SUV
Engine
3.0 L
Gearbox
Automatic
Power
503 bhp
Seats
5
CO2
239 g/km
Colour
Grey
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
Competition
Emissions standard
Euro 6

About this car

At 79,000 miles, this 2020 BMW X3 M Competition has covered about 27,000 more miles than other 2020 BMW X3 M cars. The dealer is asking £34,999, which is £265 above our market estimate of £34,734. 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 107 days ago, the asking price has dropped by £996. The time on sale and price change could be useful context when negotiating. You can find this car at Waterways Prestige in Leighton Buzzard.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 8 July 2026, 107 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £996 from the first recorded £35,995. 1 price reduction recorded, the latest observed on 2 October 2026.

Recorded asking prices
Date observedAsking price
9 July 2026£35,995
14 July 2026£35,995
2 October 2026£34,999
21 October 2026£34,999

Price and mileage comparison

Estimated market asking price: £34,734. The asking price is £265 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 27,000 miles higher than typical for a 2020 BMW X3 M.

15 other cars with the same year, trim, gearbox and fuel are for sale from £32,995 to £47,581.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£32,99586,000 miles
£36,99067,900 miles
£36,99561,200 miles
£37,99563,000 miles
£37,99583,230 miles

These cars have covered 21,618–86,000 miles, compared with 79,000 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 · 2020 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