Two Sedans with some similarities, but otherwise different in most aspects such as the model year, powertrain, fuel economy, ground shadow size, market segment, horsepower, and height. First of all, the 2013 MKS has bigger and thirstier engine; the 2016 C-Class Hybrid gets 9.5 more mpg. Also, the MKS is both significantly larger and slightly taller than the C-Class Hybrid. Among similarities are the body structure, market segment, starting price, and maximum occupancy.