GMC Sierra 3500HD (2014) is 871 mm (34.29 inch) longer, 198 mm (7.80 inch) wider, 519 mm (20.43 inch) higher and has 1538 liters (54.31 ft3) bigger cargo space than Toyota Avalon (2015).
Toyota Avalon (2015) is 1050 kg (2,315 lbs) lighter than GMC Sierra 3500HD (2014).
