The BMW Z4 (2009-13) is a two-seat sports car with a folding hardtop, rather than a practical family hatchback or SUV. In the UK used-car market, it sits among premium roadsters, offering a more polished feel than many small convertibles and a distinctive long-bonnet, low-slung look. It is designed chiefly for enjoyment. mycarcheck.com has recorded 6,896 checks covering 2,548 different VINs, a substantial sample of buyer interest. Its data puts average private-sale value at £8,200, average recorded mileage at 74,000 and annual mileage at about 3,000. Nearly four previous keepers on average suggests checking history and condition carefully is sensible. Best for couples or solo drivers seeking relaxed drives, it manages trips, but limited space and running costs make it less suited to families or high-mileage commuting. Known for open-air driving and a good cabin, it rivals the Mercedes-Benz SLK and Audi TT, with its retractable hardtop helping it stand apart.