Chevrolet Impala (2016) is 1239 kg (2,732 lbs) lighter than GMC Sierra 2500HD (2016).
GMC Sierra 2500HD (2016) is 586 mm (23.07 inch) longer, 181 mm (7.13 inch) wider, 480 mm (18.90 inch) higher and has 1185 liters (41.85 ft3) bigger cargo space than Chevrolet Impala (2016).
