Two Sedans with more similarities, such as the body structure, market segment, fuel economy, ground shadow size, height, and maximum occupancy, than differences, like the starting price and horsepower. First of all, there is a notable difference in the starting price of the 2016 Cadillac CTS, which is $6,740 less than the base MSRP of the 2015 Mercedes-Benz E-Class Sedan. And finally, the 2015 E-Class Sedan has a more powerful engine than the 2016 CTS. Among similarities are the body structure, market segment, fuel economy, ground shadow size, height, and maximum occupancy.