BMW X3 (2017-21) M40D XDRIVE 5DR SUV 3.0 MHT 340 DPFR SS EU6 AUTO8 is a premium mid-size SUV, pairing five-door practicality with sporty performance. In the UK used-car market, it sits towards the upmarket end, competing with performance versions of the Audi Q5 and Mercedes-Benz GLC. It suits families and professionals needing passenger and luggage space, all-weather traction and brisk motorway journeys, while remaining comfortable for commuting. Its strong diesel engine offers effortless acceleration and long-distance range; sharper handling and generous equipment make the M40d more engaging than many family SUVs, although purchase and running costs exceed those of mainstream alternatives. mycarcheck.com recorded 81 look-ups across 54 VINs. Checks show an average private-sale valuation of £39,400 and average recorded mileage of 35,000 miles; annual mileage averages 5,000. The average previous-keeper figure is 0.64, suggesting checked examples often had few previous owners. Figures cover checked cars, not the whole market.