Chevrolet Impala Limited (2016) is 434 mm (17.09 inch) longer, 487 kg (1,074 lbs) lighter and has 177 liters (6.25 ft3) bigger cargo space than Mercedes GLC-Class (2015).
Mercedes GLC-Class (2015) is 38 mm (1.50 inch) wider and 168 mm (6.61 inch) higher than Chevrolet Impala Limited (2016).