Two Pickups with more similarities, such as the body structure, height, and maximum occupancy, than differences, like the starting price, horsepower, and ground shadow size. First of all, there is an $8,595 difference in the base MSRP. The 2018 Ram 3500 Mega Cab has a higher starting price than the 2018 Toyota Tundra CrewMax Cab. Also, the 2018 3500 Mega Cab pulls more horsepower than the 2018 Tundra CrewMax Cab. And finally, the body structure of 3500 Mega Cab is slightly larger than that of the Tundra CrewMax Cab. Among similarities are the body structure, height, and maximum occupancy.