2021 BMW X3

2.0 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)

£23,500

Fair price: within 8% of the typical £24,315 for this model, age and mileage, drawing on 3,009 adverts of this make and model.

Overview

Make
BMW
Model
X3
Trim
M SPORT
Version
2.0 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
Mileage
56,529 miles
Year
2021
Fuel type
Diesel Hybrid
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
5
CO2
157 g/km
Colour
Grey
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
20d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

At 56,529 miles, this 2021 BMW X3 M Sport has covered about 7,000 more miles than other 2021 BMW X3 cars. The dealer is asking £23,500, which is £815 below our market estimate of £24,315. To estimate its market asking price, we analyse UK dealer adverts for 3,009 BMW X3 cars across different ages and specifications. We first recorded this car for sale 6 days ago. Its MOT is recorded as valid until 6 May 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at Swale Auto Sales II in Brompton On Swale.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 16 October 2026, 6 days ago. Advert duration calculated on 22 October 2026.

Recorded asking prices
Date observedAsking price
16 October 2026£23,500
21 October 2026£23,500

Price and mileage comparison

Estimated market asking price: £24,315. The asking price is £815 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 3,009 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 7,000 miles higher than typical for a 2021 BMW X3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 May 2027. 50,121 miles at the last test.

109 other cars with the same year, trim, gearbox and fuel are for sale from £16,295 to £36,500.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£16,295114,230 miles
£17,697100,743 miles
£18,75085,302 miles
£19,35085,245 miles
£20,40087,665 miles

These cars have covered 12,230–114,230 miles, compared with 56,529 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 cars for sale · 2021 BMW X3 price guide

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Dealer

Swale Auto Sales II, Brompton On Swale. Across the dealer network: 127 cars for sale.

Dealer postcode: DL10 7JD.

Vehicle photos