BMW 7 Series (2018) is 412 mm (16.22 inch) longer, 92 mm (3.62 inch) wider, 36 mm (1.42 inch) higher and has 24 liters (0.85 ft3) bigger cargo space than Mercedes C-Class (Estate) (2014).
Mercedes C-Class (Estate) (2014) is 365 kg (805 lbs) lighter than BMW 7 Series (2018).