BMW 3 Series (2014) is 231 mm (9.09 inch) longer and 24 mm (0.94 inch) wider than Mercedes B-Class (2014).
Mercedes B-Class (2014) is 128 mm (5.04 inch) higher, 170 kg (375 lbs) lighter and has 6 liters (0.21 ft3) bigger cargo space than BMW 3 Series (2014).
