GMC Sierra 2500HD (2016) is 820 mm (32.28 inch) longer, 578 mm (22.76 inch) higher and has 1178 liters (41.60 ft3) bigger cargo space than Mercedes E-Class (2018).
Mercedes E-Class (2018) is 36 mm (1.42 inch) wider and 1140 kg (2,513 lbs) lighter than GMC Sierra 2500HD (2016).