Two Coupes with some similarities, but otherwise different in most aspects such as the modifications, horsepower, fuel economy, model year, starting price, and ground shadow size. First of all, there is a notable difference in the starting price of the 2016 Audi TTS, which is $10,850 less than the base MSRP of the 2014 Mercedes-Benz C-Class Coupe C63 AMG, which is two model years older. Also, the 2014 C-Class Coupe C63 AMG has a more powerful engine and gets 10 mpg less than the 2016 TTS. In addition, the body structure of TTS is slightly smaller than that of the C-Class Coupe C63 AMG. Among similarities are the body structure, market segment, height, and maximum occupancy.