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 2013 E-Class Coupe produces fewer horsepower than the 2016 M2. Also, the E-Class Coupe seats two more passengers than the M2. Among similarities are the body structure, market segment, starting price, fuel economy, ground shadow size, and height.