BMW 5 Series Gran Turismo (2018) is 13 mm (0.51 inch) wider and 25 kg (55 lbs) lighter than Chevrolet Impala (2020).
Chevrolet Impala (2020) is 170 mm (6.69 inch) longer, 28 mm (1.10 inch) higher and has 3 liters (0.11 ft3) bigger cargo space than BMW 5 Series Gran Turismo (2018).