Chevrolet Impala Limited (2014) is 301 mm (11.85 inch) longer, 95 mm (3.74 inch) higher, 199 kg (439 lbs) lighter and has 195 liters (6.89 ft3) bigger cargo space than Ford Mustang (2018).
Ford Mustang (2018) is 63 mm (2.48 inch) wider than Chevrolet Impala Limited (2014).