The BMW 4 SERIES CONVERTIBLE (2017-20) 420I 2DR CONVERTIBLE 2.0 SS 184 EU6 M SPORT AUTO8 is a premium, four-seat open-top car, sitting above everyday hatchbacks and alongside rivals such as the Audi A5 Cabriolet and Mercedes-Benz C-Class Cabriolet. Its folding roof gives it year-round coupé appeal with the option of open-air driving. Smooth petrol power and an automatic gearbox suit commuting, weekend trips and scenic drives, while M Sport styling gives this BMW a purposeful edge. It best suits couples or small households seeking comfort and open-air enjoyment rather than generous rear-seat or boot space, and feels more premium and engaging than many mainstream convertibles. Mycarcheck.com recorded 1,083 look-ups across 484 distinct VINs, a substantial sample. Checks show average private-sale valuation of £19,400, recorded mileage of 35,000 miles and annual mileage of 7,000; vehicles averaged 1.53 previous keepers. These figures describe checked cars, not a guarantee for a example.