GMC Sierra 3500HD (2014) is 950 mm (37.40 inch) longer, 581 mm (22.87 inch) higher and has 1451 liters (51.24 ft3) bigger cargo space than Mercedes E-Class (2015).
Mercedes E-Class (2015) is 39 mm (1.54 inch) wider and 796 kg (1,755 lbs) lighter than GMC Sierra 3500HD (2014).