The BMW X4 (2014-18) is a premium mid-size SUV with a coupe-like roof, aimed at buyers wanting SUV practicality with a sportier, distinctive look. In the UK used-car market, it sits above mainstream family SUVs, offering an upmarket alternative to models such as the Audi Q5 and Mercedes-Benz GLC Coupe. mycarcheck.com has recorded 7,444 look-ups covering 3,128 different VINs, giving a useful sample of used BMW X4 interest. Checks show an average private-sale valuation of £18,400 and average mileage of 66,000 miles. Typical annual mileage is 9,000, and the average is 2.3 previous keepers per car in these checks. It suits professionals, couples and families seeking commuting, long-distance travel and room for weekend trips, rather than a rugged off-roader. The elevated driving position, premium cabin and styling set it apart from SUVs; the trade-off is less rear headroom and practicality than a boxier rival. Choose by condition and history.