BMW 5 Series (2016) is 221 mm (8.70 inch) longer, 49 mm (1.93 inch) wider, 21 mm (0.83 inch) higher and has 80 liters (2.83 ft3) bigger cargo space than Mercedes C-Class (2017).
Mercedes C-Class (2017) is 395 kg (871 lbs) lighter than BMW 5 Series (2016).