GMC Sierra 2500HD (2014) is 836 mm (32.91 inch) longer, 571 mm (22.48 inch) higher and has 1178 liters (41.60 ft3) bigger cargo space than Mercedes E-Class (2018).
Mercedes E-Class (2018) is 39 mm (1.54 inch) wider and 1095 kg (2,414 lbs) lighter than GMC Sierra 2500HD (2014).