Two Sedans with more similarities, such as the body structure, market segment, starting price, height, and maximum occupancy, than differences, like the model year, horsepower, fuel economy, and ground shadow size. First of all, the 2016 K900 has a more powerful engine and gets 3 mpg less than the 2013 GS 350. Also, the K900 has a slightly larger body than the GS 350. Among similarities are the body structure, market segment, starting price, height, and maximum occupancy.