Buick Regal (2014) is 3 mm (0.12 inch) wider and 59 kg (130 lbs) lighter than Chevrolet Impala (2016).
Chevrolet Impala (2016) is 282 mm (11.10 inch) longer, 13 mm (0.51 inch) higher and has 131 liters (4.63 ft3) bigger cargo space than Buick Regal (2014).
