2016 Mercedes-Benz S-Class Sedan Hybrid is the newer version with some differences, such as the model year, horsepower, and fuel economy.. First of all, the 2016 S-Class Sedan Hybrid has a more powerful engine than the 2013 S-Class Hybrid, but it gets 5 more miles on a gallon of fuel. Among similarities are the body structure, powertrain, market segment, starting price, ground shadow size, height, and maximum occupancy.