Two Hatchbacks with more similarities, such as the body structure, starting price, ground shadow size, and maximum occupancy, than differences, like the model year, horsepower, fuel economy, and height. First of all, the 2014 Impreza Hatchback has a more powerful engine and gets 1.5 mpg less than the 2016 iM. Also, the iM is slightly shorter than the Impreza Hatchback. Among similarities are the body structure, starting price, ground shadow size, and maximum occupancy.