GMC Sierra 2500HD (2014) is 757 mm (29.80 inch) longer, 198 mm (7.80 inch) wider, 509 mm (20.04 inch) higher and has 1265 liters (44.67 ft3) bigger cargo space than Toyota Avalon (2015).
Toyota Avalon (2015) is 1349 kg (2,974 lbs) lighter than GMC Sierra 2500HD (2014).
