Two Pickups with more similarities, such as the body structure, starting price, ground shadow size, height, and maximum occupancy, than differences, like the fuel economy and horsepower. And finally, the 2015 Nissan Titan King Cab has bigger and thirstier engine; the 2016 Chevrolet Silverado 1500 Regular Cab gets 5 more mpg. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.