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

55,400 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

Grey

Doors

5

Driven wheels

Four Wheel Drive

Engine badge

40d

Emissions standard

Euro 6

About this car

With 55,400 miles on the clock, this 2018 BMW X6 M Sport has done roughly 14,300 fewer miles than a typical 2018 BMW X6. At £23,000, it is advertised £1,509 below our estimated market asking price of £24,509. Our estimate draws on 513 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £1,125 lower than when we first recorded the advert 94 days ago. That history is worth bearing in mind when speaking to the dealer. Its recorded MOT is valid until 16 November 2026, and its advertised mileage is consistent with the latest MOT reading. The seller is nucar, based in Basildon.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £24,509. The asking price is £1,509 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 14,300 miles lower than typical for a 2018 BMW X6.

The advertised mileage is consistent with the last MOT reading.