Chevrolet Impala (2014) is 622 mm (24.49 inch) longer, 46 mm (1.81 inch) wider, 201 mm (7.91 inch) higher and has 388 liters (13.70 ft3) bigger cargo space than Porsche 911 (2017).
Porsche 911 (2017) is 179 kg (395 lbs) lighter than Chevrolet Impala (2014).
