GMC Sierra 3500HD (2015) is 742 mm (29.21 inch) longer, 201 mm (7.91 inch) wider, 491 mm (19.33 inch) higher and has 1538 liters (54.31 ft3) bigger cargo space than Toyota Avalon (2015).
Toyota Avalon (2015) is 1134 kg (2,500 lbs) lighter than GMC Sierra 3500HD (2015).
