Two Pickups with some similarities, but otherwise different in most aspects such as the powertrain, starting price, horsepower, fuel economy, and ground shadow size. First of all, the 2018 Toyota Tundra CrewMax Cab has a more powerful engine than the 2018 Nissan Titan XD Crew Cab Diesel, and it gets 3 fewer miles on a gallon of fuel. Also, the 2018 Tundra CrewMax Cab is priced $6,990 lower compared to the base MSRP of the 2018 Titan XD Crew Cab Diesel. In addition, the Titan XD Crew Cab Diesel is slightly larger than the Tundra CrewMax Cab. Among similarities are the body structure, height, and maximum occupancy.