Two Convertibles with some similarities, but otherwise different in most aspects such as the model year, starting price, fuel economy, horsepower, ground shadow size, and height. First of all, there is a notable difference in the starting price of the 2016 Porsche 911 Convertible, which is $42,100 less than the base MSRP of the 2013 Maserati GranTurismo Convertible, which is three model years older. Also, the 2013 GranTurismo Convertible has bigger and thirstier engine; the 2016 911 Convertible gets 6 more mpg. And finally, the GranTurismo Convertible is both slightly larger and taller than the 911 Convertible. Among similarities are the body structure, market segment, and maximum occupancy.