Chevrolet Impala (2015) is 703 mm (27.68 inch) longer, 20 mm (0.79 inch) wider and has 98 liters (3.46 ft3) bigger cargo space than Mercedes GLA-Class (2017).
Mercedes GLA-Class (2017) is 115 mm (4.53 inch) higher and 161 kg (355 lbs) lighter than Chevrolet Impala (2015).