BMW 1 Series (2014) is 2 mm (0.08 inch) higher, 50 kg (110 lbs) lighter and has 4 liters (0.14 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 326 mm (12.83 inch) longer and 62 mm (2.44 inch) wider than BMW 1 Series (2014).