Two SUVs with more similarities, such as the body structure, starting price, ground shadow size, and height, than differences, like the horsepower, fuel economy, and maximum occupancy. First of all, a bigger engine usually means less mpg. But the 2016 Honda Pilot has a more powerful engine and it gets 3.5 more mpg than the 2015 Mazda CX-9. And finally, you'll seat one more passenger in the 2016 Pilot than in the 2015 CX-9. Among similarities are the body structure, starting price, ground shadow size, and height.