Two Coupes with more similarities, such as the body structure, market segment, starting price, height, and maximum occupancy, than differences, like the horsepower, fuel economy, ground shadow size, and market segment. First of all, the 2015 Ford Shelby GT350 has bigger and thirstier engine; the 2016 Audi TTS gets 9 more mpg. Also, the body structure of 2016 TTS is significantly smaller than that of the 2015 Shelby GT350. Among similarities are the body structure, market segment, starting price, height, and maximum occupancy.