Two Sedans with more similarities, such as the body structure, starting price, ground shadow size, height, and maximum occupancy, than differences, like the model year, powertrain, horsepower, and fuel economy. First of all, although the 2016 Sonata Hybrid has a more powerful engine than the 2013 Passat Diesel, it gets 6 more mpg. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.