Ford Mustang (2017) is 391 mm (15.39 inch) longer and 130 mm (5.12 inch) wider than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 163 mm (6.42 inch) higher, 417 kg (919 lbs) lighter and has 162 liters (5.72 ft3) bigger cargo space than Ford Mustang (2017).