Chevrolet Impala (2018) is 615 mm (24.21 inch) longer, 67 mm (2.64 inch) wider, 57 mm (2.24 inch) higher and has 233 liters (8.23 ft3) bigger cargo space than Opel Ampera (2014).
Opel Ampera (2014) is 67 kg (148 lbs) lighter than Chevrolet Impala (2018).
