BMW 3 Series Gran Turismo (2018) is 232 mm (9.13 inch) longer, 58 mm (2.28 inch) wider, 78 mm (3.07 inch) higher and has 189 liters (6.67 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 130 kg (287 lbs) lighter than BMW 3 Series Gran Turismo (2018).