GMC Terrain (2015) is 194 mm (7.64 inch) higher, 397 kg (875 lbs) lighter and has 1292 liters (45.63 ft3) bigger cargo space than Mercedes S-Class (2020).
Mercedes S-Class (2020) is 538 mm (21.18 inch) longer and 50 mm (1.97 inch) wider than GMC Terrain (2015).