Chevrolet Impala (2017) is 143 mm (5.63 inch) longer, 78 mm (3.07 inch) higher, 45 kg (99 lbs) lighter and has 88 liters (3.11 ft3) bigger cargo space than Porsche Panamera (2014).
Porsche Panamera (2014) is 77 mm (3.03 inch) wider than Chevrolet Impala (2017).
