BMW 1 Series (2015) is 7 mm (0.28 inch) higher and 570 kg (1,257 lbs) lighter than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 697 mm (27.44 inch) longer, 132 mm (5.20 inch) wider and has 40 liters (1.41 ft3) bigger cargo space than BMW 1 Series (2015).