Mercedes C-Class (Estate) (2017) is 555 kg (1,224 lbs) lighter than Mercedes M-Class (2015).
Mercedes M-Class (2015) is 102 mm (4.02 inch) longer, 116 mm (4.57 inch) wider, 331 mm (13.03 inch) higher and has 200 liters (7.06 ft3) bigger cargo space than Mercedes C-Class (Estate) (2017).