Mercedes E-Class (Coupe) (2020) is 188 mm (7.40 inch) longer, 450 kg (992 lbs) lighter and has 75 liters (2.65 ft3) bigger cargo space than Mercedes GLC-Class (2015).
Mercedes GLC-Class (2015) is 30 mm (1.18 inch) wider and 227 mm (8.94 inch) higher than Mercedes E-Class (Coupe) (2020).