GMC Sierra 3500HD (2019) is 838 mm (32.99 inch) longer, 146 mm (5.75 inch) wider, 500 mm (19.69 inch) higher and has 1338 liters (47.25 ft3) bigger cargo space than Mercedes S-Class (2017).
Mercedes S-Class (2017) is 768 kg (1,693 lbs) lighter than GMC Sierra 3500HD (2019).