Two Pickups with more similarities, such as the body structure, ground shadow size, height, and maximum occupancy, than differences, like the powertrain, horsepower, fuel economy, and starting price. First of all, the 2017 Toyota Tundra Double Cab has a more powerful engine than the 2017 Ram 1500 Quad Cab Diesel, and it gets 5.5 fewer miles on a gallon of fuel. Also, the 2017 Tundra Double Cab is priced $7,775 lower compared to the base MSRP of the 2017 1500 Quad Cab Diesel. Among similarities are the body structure, ground shadow size, height, and maximum occupancy.