GMC Sierra 3500HD (2016) is 856 mm (33.70 inch) longer, 110 mm (4.33 inch) wider, 135 mm (5.31 inch) higher and has 680 liters (24.01 ft3) bigger cargo space than Toyota 4Runner (2015).
Toyota 4Runner (2015) is 520 kg (1,146 lbs) lighter than GMC Sierra 3500HD (2016).