The BMW Z4 (2003-09) 2DR ROADSTER 3.0I 231 AUTO is a two-seat, open-top sports car rather than a practical hatchback or family car. In the UK used market, it sits in the affordable older roadster category, offering premium-badge appeal and lively performance for buyers seeking weekend enjoyment. mycarcheck.com has recorded 644 checks covering 145 distinct VINs, a useful sample of vehicles attracting buyer interest. Its observed average private-sale valuation is £2,200, with average latest recorded mileage of 92,000 miles and annual mileage of 2,000 miles. Cars in these records had an average of around 6.6 previous keepers, so check each car’s history and condition individually; these figures describe the data, not a guarantee about any example. Distinctive styling and an automatic gearbox make the Z4 special. It suits couples or solo drivers seeking enjoyment, not family duties. Against the Mazda MX-5, it feels upmarket, but may cost more to run.