BMW 7 Series (2020) is 30 mm (1.18 inch) longer and 50 mm (1.97 inch) wider than Chevrolet Impala Limited (2016).
Chevrolet Impala Limited (2016) is 24 mm (0.94 inch) higher, 402 kg (886 lbs) lighter and has 12 liters (0.42 ft3) bigger cargo space than BMW 7 Series (2020).