BMW 5 Series (2020) is 13 mm (0.51 inch) wider and 40 kg (88 lbs) lighter than Chevrolet Impala (2014).
Chevrolet Impala (2014) is 170 mm (6.69 inch) longer, 18 mm (0.71 inch) higher and has 3 liters (0.11 ft3) bigger cargo space than BMW 5 Series (2020).