Two Convertibles with more similarities, such as the body structure, market segment, height, and maximum occupancy, than differences, like the modifications, starting price, horsepower, fuel economy, and ground shadow size. First of all, the 2016 Audi S5 Convertible is priced $120,909 lower compared to the base MSRP of the 2016 Maserati GranTurismo Convertible MC Centennial. Also, the 2016 GranTurismo Convertible MC Centennial has bigger and thirstier engine; the 2016 S5 Convertible gets 6 more mpg. In addition, the S5 Convertible is slightly smaller than the GranTurismo Convertible MC Centennial. Among similarities are the body structure, market segment, height, and maximum occupancy.