The BMW Z4 (2003-09) 2DR ROADSTER 2.5SI 218 SPORT AUTO is a two-seat, open-top sports car, rather than a hatchback or family car. In the UK used market, it appeals to drivers wanting style and weekend motoring. Its automatic gearbox makes relaxed cruising easier, while the 2.5-litre engine offers lively performance. mycarcheck.com recorded 41 look-ups covering 21 different VINs, so the figures offer a useful snapshot rather than a complete picture of every Z4. Across those checks, the average private-sale valuation was £3,300, with average recorded mileage of 95,000 and annual use of about 4,000 miles. The average keeper count was 5.5, suggesting many examples have changed hands several times. The Z4's distinctive long-bonnet styling and open-air drive stand out alongside rivals like the Audi TT and Mercedes-Benz SLK. It suits couples or drivers wanting a second car, but limited space makes it less suited to families. Check condition and service history carefully.