Two Sedans with more similarities, such as the body structure, market segment, ground shadow size, height, and maximum occupancy, than differences, like the modifications, starting price, horsepower, and fuel economy. First of all, there is a notable difference in the starting price of the 2017 Maserati Quattroporte GTS GranSport, which is $99,100 less than the base MSRP of the 2017 Bentley Flying Spur W12 S. Also, the 2017 Flying Spur W12 S has bigger and thirstier engine; the 2017 Quattroporte GTS GranSport gets 2 more mpg. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.