2018 BMW X6

Overview

Make

BMW

Model

X6

Trim

M SPORT

Version

3.0 40d M Sport Auto 4WD Euro 6 (s/s) 5dr (309 bhp)

Mileage

54,646 miles

Year

2018

Fuel type

Diesel

Body type

SUV

Engine

3.0 L

Gearbox

Automatic

Power

309 bhp

Seats

5

CO2

165 g/km

Colour

White

Doors

5

Driven wheels

Four Wheel Drive

Engine badge

40d

Emissions standard

Euro 6

About this car

With 54,646 miles on the clock, this 2018 BMW X6 M Sport has done roughly 15,100 fewer miles than a typical 2018 BMW X6. Our estimated market asking price is £24,598. This car is advertised at £21,800, which is £2,798 below that figure. We use UK dealer asking prices, including 513 BMW X6 listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 114 days ago, the asking price has dropped by £2,450. It may give you a starting point for a conversation about price. MOT records show an expiry date of 29 June 2027, and the latest recorded mileage is consistent with the advert. The seller is Car Planet Watford, based in Rickmansworth.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £24,598. The asking price is £2,798 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 513 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,100 miles lower than typical for a 2018 BMW X6.

The advertised mileage is consistent with the last MOT reading.