Ford Mustang (2015) is 492 mm (19.37 inch) longer and 136 mm (5.35 inch) wider than Mercedes A-Class (2016).
Mercedes A-Class (2016) is 39 mm (1.54 inch) higher, 417 kg (919 lbs) lighter and has 17 liters (0.60 ft3) bigger cargo space than Ford Mustang (2015).