Chevrolet Impala (2014) is 429 mm (16.89 inch) longer, 282 mm (11.10 inch) higher and has 113 liters (3.99 ft3) bigger cargo space than McLaren GT (2020).
McLaren GT (2020) is 241 mm (9.49 inch) wider and 153 kg (337 lbs) lighter than Chevrolet Impala (2014).