Two Pickups 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 2018 Toyota Tundra CrewMax Cab has bigger and thirstier engine; the 2018 Chevrolet Silverado 1500 Crew Cab gets 3.5 more mpg. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.