GMC Acadia (2016) is 444 mm (17.48 inch) longer, 114 mm (4.49 inch) wider, 185 mm (7.28 inch) higher and has 830 liters (29.31 ft3) bigger cargo space than Mercedes GLC-Class (2016).
Mercedes GLC-Class (2016) is 100 kg (220 lbs) lighter than GMC Acadia (2016).