2021 BMW X3

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

76,742 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

This 2021 BMW X3 M Sport has covered 76,742 miles, around 27,200 more than typical for its age. Its asking price of £20,450 is £772 below our estimate of £21,222. We use UK dealer asking prices, including 3,009 BMW X3 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 54 days ago, the asking price has dropped by £2,400. Its MOT is recorded as valid until 14 January 2027. The advertised mileage is consistent with the latest MOT reading. It is for sale at Car Planet Watford in Rickmansworth.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £21,222. The asking price is £772 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 27,200 miles higher than typical for a 2021 BMW X3.

The advertised mileage is consistent with the last MOT reading.