Two Pickups with more similarities, such as the body structure, starting price, ground shadow size, height, and maximum occupancy, than differences, like the powertrain, horsepower, and fuel economy. First of all, the 2018 Toyota Tundra CrewMax Cab has a more powerful engine than the 2018 Nissan Titan XD Regular Cab Diesel, and it gets 3 fewer miles on a gallon of fuel. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.