BMW 7 Series (2017) is 412 mm (16.22 inch) longer, 92 mm (3.62 inch) wider, 69 mm (2.72 inch) higher and has 159 liters (5.62 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 250 kg (551 lbs) lighter than BMW 7 Series (2017).