Mercedes B-Class (2017) is 67 mm (2.64 inch) higher and 750 kg (1,653 lbs) lighter than Mercedes S-Class (2014).
Mercedes S-Class (2014) is 852 mm (33.54 inch) longer, 113 mm (4.45 inch) wider and has 14 liters (0.49 ft3) bigger cargo space than Mercedes B-Class (2017).