Chevrolet Impala Limited (2016) is 193 mm (7.60 inch) longer, 36 mm (1.42 inch) higher and has 37 liters (1.31 ft3) bigger cargo space than Opel Insignia Grand Sport (2017).
Opel Insignia Grand Sport (2017) is 11 mm (0.43 inch) wider and 248 kg (547 lbs) lighter than Chevrolet Impala Limited (2016).
