Opel Insignia Grand Sport (2017) is 31 mm (1.22 inch) longer, 29 mm (1.14 inch) wider, 100 kg (220 lbs) lighter and has 40 liters (1.41 ft3) bigger cargo space than Volkswagen Passat (2016).
Volkswagen Passat (2016) is 31 mm (1.22 inch) higher than Opel Insignia Grand Sport (2017).
