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, the 2016 Kia Sportage has bigger and thirstier engine; the 2015 Nissan Rogue gets 6 more mpg. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.