Two Hatchbacks with more similarities, such as the body structure, market segment, starting price, and height, than differences, like the horsepower, fuel economy, ground shadow size, and maximum occupancy. First of all, the 2015 Mazda 3 Hatchback has a more powerful engine than the 2016 Hyundai Veloster, but it gets 1.5 more miles on a gallon of fuel. Also, the body structure of 2016 Veloster is slightly smaller than that of the 2015 3 Hatchback. And finally, there is a difference in the number of passengers; the 3 Hatchback seats one more the Veloster. Among similarities are the body structure, market segment, starting price, and height.