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, the 2016 Maserati Quattroporte GTS is priced $80,500 lower compared to the base MSRP of the 2015 Mercedes-Benz S-Class Sedan S 65 AMG. Also, the 2015 S-Class Sedan S 65 AMG has a more powerful engine than the 2016 Quattroporte GTS, and it gets 2 fewer miles on a gallon of fuel. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.