Two Sedans with more similarities, such as the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy, than differences, like the modifications, horsepower, and fuel economy. First of all, the 2017 Mercedes-Benz S-Class Sedan AMG S 63 has a more powerful engine than the 2017 Maserati Quattroporte GTS GranSport, but it gets 1 more mile on a gallon of fuel. Among similarities are the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy.