Chevrolet Impala (2019) is 850 mm (33.46 inch) longer, 38 mm (1.50 inch) wider, 37 mm (1.46 inch) higher and has 153 liters (5.40 ft3) bigger cargo space than Seat Leon (2014).
Seat Leon (2014) is 515 kg (1,135 lbs) lighter than Chevrolet Impala (2019).
