Chevrolet Impala (2016) is 743 mm (29.25 inch) longer, 79 mm (3.11 inch) wider, 11 mm (0.43 inch) higher and has 163 liters (5.76 ft3) bigger cargo space than Vauxhall Astra (Hatchback) (2017).
Vauxhall Astra (Hatchback) (2017) is 555 kg (1,224 lbs) lighter than Chevrolet Impala (2016).
