Two Sedans with more similarities, such as the body structure, market segment, starting price, fuel economy, height, and maximum occupancy, than differences, like the model year, horsepower, and ground shadow size. First of all, the 2016 ATS has a more powerful engine than the 2013 ES 350. Also, the body structure of ATS is slightly smaller than that of the ES 350. Among similarities are the body structure, market segment, starting price, fuel economy, height, and maximum occupancy.