Mercedes M-Class (2014) is 29 mm (1.14 inch) wider, 374 mm (14.72 inch) higher and has 290 liters (10.24 ft3) bigger cargo space than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 222 mm (8.74 inch) longer and 200 kg (441 lbs) lighter than Mercedes M-Class (2014).