Buick Regal (2015) is 5 mm (0.20 inch) wider than Chevrolet Impala Limited (2016).
Chevrolet Impala Limited (2016) is 259 mm (10.20 inch) longer, 8 mm (0.31 inch) higher, 62 kg (137 lbs) lighter and has 125 liters (4.41 ft3) bigger cargo space than Buick Regal (2015).
