Two Sedans with more similarities, such as the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy, than differences, like the model year, modifications, horsepower, and fuel economy. First of all, the 2013 300 SRT8 Core has a more powerful engine than the 2016 SS, but it gets 1 more mile on a gallon of fuel. Among similarities are the body structure, market segment, starting price, ground shadow size, height, and maximum occupancy.