Two Convertibles with some similarities, but otherwise different in most aspects such as the starting price, fuel economy, horsepower, ground shadow size, and maximum occupancy. First of all, there is a $60,690 difference in the base MSRP. The 2016 Maserati GranTurismo Convertible has a higher starting price than the 2016 Mercedes-Benz SL-Class. Also, the 2016 GranTurismo Convertible has bigger and thirstier engine; the 2016 SL-Class gets 6 more mpg. In addition, the GranTurismo Convertible is slightly larger than the SL-Class. And finally, there is a difference in the number of passengers; the Maserati GranTurismo Convertible seats two more the Mercedes-Benz SL-Class. Among similarities are the body structure, market segment, and height.