Chevrolet Impala (2016) is 359 mm (14.13 inch) longer, 33 mm (1.30 inch) wider and has 117 liters (4.13 ft3) bigger cargo space than Subaru Legacy (2016).
Subaru Legacy (2016) is 10 mm (0.39 inch) higher and 187 kg (412 lbs) lighter than Chevrolet Impala (2016).