GMC Sierra 3500HD (2016) is 1334 mm (52.52 inch) longer, 270 mm (10.63 inch) wider, 402 mm (15.83 inch) higher and has 1561 liters (55.13 ft3) bigger cargo space than Toyota Matrix (2016).
Toyota Matrix (2016) is 1409 kg (3,106 lbs) lighter than GMC Sierra 3500HD (2016).
