Two Sedans with some similarities, but otherwise different in most aspects such as the model year, starting price, horsepower, fuel economy, and ground shadow size. First of all, there is a $14,035 difference in the base MSRP. The 2013 Lexus GS 350, an older vehicle by three model years, has a higher starting price than the 2016 Cadillac ATS. Also, the 2013 GS 350 has a more powerful engine than the 2016 ATS, and it gets 2.2 fewer miles on a gallon of fuel. And finally, the ATS has a slightly smaller body than the GS 350. Among similarities are the body structure, market segment, height, and maximum occupancy.