GMC Sierra 1500 (2014) is 855 mm (33.66 inch) longer, 267 mm (10.51 inch) wider, 318 mm (12.52 inch) higher and has 1298 liters (45.84 ft3) bigger cargo space than Toyota Matrix (2016).
Toyota Matrix (2016) is 700 kg (1,543 lbs) lighter than GMC Sierra 1500 (2014).