GMC Sierra 3500HD (2018) is 349 mm (13.74 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 (2015).
Toyota HiLux (2015) is 725 kg (1,598 lbs) lighter than GMC Sierra 3500HD (2018).