GMC Sierra 3500HD (2014) is 584 mm (22.99 inch) longer, 133 mm (5.24 inch) wider, 489 mm (19.25 inch) higher and has 1491 liters (52.65 ft3) bigger cargo space than Mercedes S-Class (2019).
Mercedes S-Class (2019) is 474 kg (1,045 lbs) lighter than GMC Sierra 3500HD (2014).