Two Sedans with some similarities, but otherwise different in most aspects such as the model year, powertrain, horsepower, fuel economy, market segment, and ground shadow size. First of all, the 2013 CTS-V has a more powerful engine than the 2016 RLX Hybrid, and it gets 14 fewer miles on a gallon of fuel. Also, the body structure of RLX Hybrid is slightly larger than that of the CTS-V. Among similarities are the body structure, market segment, starting price, height, and maximum occupancy.