Two Convertibles with some similarities, but otherwise different in most aspects such as the modifications, horsepower, fuel economy, ground shadow size, and height. First of all, the 2016 MINI Cooper Convertible has a more powerful engine and gets 2 mpg less than the 2015 FIAT 500 Convertible C Abarth. Also, the 2015 500 Convertible C Abarth is slightly smaller, but the roofline is taller than that of the 2016 Cooper Convertible. Among similarities are the body structure, starting price, and maximum occupancy.