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, model year, horsepower, and fuel economy. First of all, although the 2014 S-Class S63 AMG 4MATIC has a more powerful engine than the 2016 Quattroporte GTS, it gets 1 more mpg. Among similarities are the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy.