Two Convertibles with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, ground shadow size, height, and maximum occupancy. First of all, the 2017 Porsche 718 Boxster is priced $89,740 lower compared to the base MSRP of the 2017 Maserati GranTurismo Convertible. Also, the 2017 GranTurismo Convertible has a more powerful engine than the 2017 718 Boxster, and it gets 8 fewer miles on a gallon of fuel. In addition, the GranTurismo Convertible body is significantly larger than the 718 Boxster, and in addition to that, it's also slightly taller. And finally, there is a difference in the number of passengers; the Maserati GranTurismo Convertible seats two more the Porsche 718 Boxster. Among similarities are the body structure and market segment.