Two Sedans with more similarities, such as the body structure, market segment, ground shadow size, and height, than differences, like the modifications, starting price, horsepower, fuel economy, and maximum occupancy. First of all, there is a $17,700 difference in the base MSRP. The 2015 Mercedes-Benz E-Class Sedan E 63 AMG 4MATIC S-Model has a higher starting price than the 2016 Audi S7. Also, the 2015 E-Class Sedan E 63 AMG 4MATIC S-Model has bigger and thirstier engine; the 2016 S7 gets 3 more mpg. In addition, the E-Class Sedan E 63 AMG 4MATIC S-Model seats one more passenger than the S7. Among similarities are the body structure, market segment, ground shadow size, and height.