Chevrolet Impala (2014) is 696 mm (27.40 inch) longer, 119 mm (4.69 inch) wider and has 111 liters (3.92 ft3) bigger cargo space than Chevrolet Sonic (Sedan) (2016).
Chevrolet Sonic (Sedan) (2016) is 20 mm (0.79 inch) higher and 456 kg (1,005 lbs) lighter than Chevrolet Impala (2014).
