GMC Sierra 2500HD (2017) is 370 mm (14.57 inch) longer, 180 mm (7.09 inch) wider, 166 mm (6.54 inch) higher and has 1283 liters (45.31 ft3) bigger cargo space than Toyota HiLux (2017).
Toyota HiLux (2017) is 397 kg (875 lbs) lighter than GMC Sierra 2500HD (2017).