The BMW Z4 (2009-13) SDRIVE35I 2DR ROADSTER 3.0 306 EU5 M SPORT DCT AUTO7 is a premium two-seat convertible, aimed at drivers wanting open-air style rather than family practicality. In the UK used-car market, it sits among compact luxury roadsters, rivaling the Audi TT Roadster and Mercedes-Benz SLK. mycarcheck.com recorded 151 look-ups covering 62 different VINs, giving a useful snapshot of interest. The checks show an average private-sale valuation of £9,300 and average recorded mileage of 69,000 miles; typical annual use was 5,000 miles. Cars had about four previous keepers on average, so checking each car’s history and condition is particularly worthwhile. With 306 horsepower and a quick-shifting automatic gearbox, the sDrive35i offers performance and an engaging drive, while the folding roof brings summer appeal. M Sport styling adds a sportier look. It suits couples or enthusiasts seeking a weekend car, not buyers needing rear seats, low running costs or family space.