GMC Sierra 3500HD (2017) is 6 mm (0.24 inch) wider, 52 mm (2.05 inch) higher and has 575 liters (20.31 ft3) bigger cargo space than Toyota Tundra (2014).
Toyota Tundra (2014) is 115 mm (4.53 inch) longer and 192 kg (423 lbs) lighter than GMC Sierra 3500HD (2017).