Mercedes GLC-Class (2015) is 169 mm (6.65 inch) higher and 45 kg (99 lbs) lighter than Mercedes S-Class (2017).
Mercedes S-Class (2017) is 589 mm (23.19 inch) longer, 9 mm (0.35 inch) wider and has 150 liters (5.30 ft3) bigger cargo space than Mercedes GLC-Class (2015).