GMC Sierra 2500HD (2019) is 846 mm (33.31 inch) longer, 110 mm (4.33 inch) wider, 246 mm (9.69 inch) higher and has 862 liters (30.44 ft3) bigger cargo space than Toyota Highlander (2017).
Toyota Highlander (2017) is 727 kg (1,603 lbs) lighter than GMC Sierra 2500HD (2019).