Two SUVs with more similarities, such as the body structure, starting price, ground shadow size, height, and maximum occupancy, than differences, like the horsepower and fuel economy. And finally, a bigger engine usually means less mpg. But the 2015 Nissan Rogue has a more powerful engine and it gets 2.2 more mpg than the 2016 Hyundai Tucson. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.