GMC Sierra 3500HD (2018) 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 508 kg (1,120 lbs) lighter than GMC Sierra 3500HD (2018).