BMW 5 Series (2020) is 257 mm (10.12 inch) longer, 57 mm (2.24 inch) wider, 36 mm (1.42 inch) higher and has 50 liters (1.77 ft3) bigger cargo space than Mercedes C-Class (2018).
Mercedes C-Class (2018) is 239 kg (527 lbs) lighter than BMW 5 Series (2020).