Chevrolet Impala (2020) is 838 mm (32.99 inch) longer, 86 mm (3.39 inch) wider and has 12 liters (0.42 ft3) bigger cargo space than Mazda 6 Atenza (2017).
Mazda 6 Atenza (2017) is 46 mm (1.81 inch) higher and 450 kg (992 lbs) lighter than Chevrolet Impala (2020).
