GMC Sierra 3500HD (2015) is 674 mm (26.54 inch) longer, 138 mm (5.43 inch) wider, 537 mm (21.14 inch) higher and has 1591 liters (56.19 ft3) bigger cargo space than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 753 kg (1,660 lbs) lighter than GMC Sierra 3500HD (2015).