GMC Sierra 3500HD (2018) is 1333 mm (52.48 inch) longer, 270 mm (10.63 inch) wider, 428 mm (16.85 inch) higher and has 1561 liters (55.13 ft3) bigger cargo space than Toyota Matrix (2020).
Toyota Matrix (2020) is 1425 kg (3,142 lbs) lighter than GMC Sierra 3500HD (2018).