GMC Terrain (2017) is 51 mm (2.01 inch) longer, 25 mm (0.98 inch) higher, 352 kg (776 lbs) lighter and has 1442 liters (50.92 ft3) bigger cargo space than Mercedes GLC-Class (2017).
Mercedes GLC-Class (2017) is 41 mm (1.61 inch) wider than GMC Terrain (2017).