GMC Sierra 3500HD (2015) is 821 mm (32.32 inch) longer, 553 mm (21.77 inch) higher and has 1451 liters (51.24 ft3) bigger cargo space than Mercedes E-Class (2015).
Mercedes E-Class (2015) is 36 mm (1.42 inch) wider and 880 kg (1,940 lbs) lighter than GMC Sierra 3500HD (2015).