GMC Sierra 2500HD (2019) is 455 mm (17.91 inch) longer, 136 mm (5.35 inch) wider, 486 mm (19.13 inch) higher and has 1227 liters (43.33 ft3) bigger cargo space than Mercedes S-Class (2014).
Mercedes S-Class (2014) is 606 kg (1,336 lbs) lighter than GMC Sierra 2500HD (2019).