What we have here are two Sedans from Cadillac with some differences, such as the model year, horsepower, fuel economy, and ground shadow size. First of all, the 2013 CTS-V has a more powerful engine than the 2016 ATS-V Sedan, and it gets 3 fewer miles on a gallon of fuel. Also, the body structure of ATS-V Sedan is slightly smaller than that of the CTS-V. Among similarities are the body structure, market segment, starting price, height, and maximum occupancy.