Buick Regal TourX (2019) is 8 mm (0.31 inch) wider, 42 kg (93 lbs) lighter and has 67 liters (2.37 ft3) bigger cargo space than Chevrolet Impala (2017).
Chevrolet Impala (2017) is 127 mm (5.00 inch) longer and 13 mm (0.51 inch) higher than Buick Regal TourX (2019).