Two Coupes with more similarities, such as the body structure, market segment, starting price, fuel economy, ground shadow size, and height, than differences, like the model year, horsepower, and maximum occupancy. First of all, the 2016 M2 pulls more horsepower than the 2014 E-Class Coupe. Also, you'll seat two more passengers in the E-Class Coupe than in the M2. Among similarities are the body structure, market segment, starting price, fuel economy, ground shadow size, and height.