BMW 4 Series (2020) is 375 mm (14.76 inch) longer and 66 mm (2.60 inch) wider than Mercedes B-Class (2014).
Mercedes B-Class (2014) is 174 mm (6.85 inch) higher, 205 kg (452 lbs) lighter and has 46 liters (1.62 ft3) bigger cargo space than BMW 4 Series (2020).
