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 horsepower and fuel economy. And finally, although the 2017 Mercedes-Benz S-Class Sedan has a more powerful engine than the 2017 Maserati Quattroporte, it gets 1 more mpg. Among similarities are the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy.