GMC Sierra 3500HD (2017) is 369 mm (14.53 inch) longer, 180 mm (7.09 inch) wider, 167 mm (6.57 inch) higher and has 1556 liters (54.95 ft3) bigger cargo space than Toyota HiLux (2017).
Toyota HiLux (2017) is 507 kg (1,118 lbs) lighter than GMC Sierra 3500HD (2017).