Opel Insignia Grand Sport (2017) is 35 mm (1.38 inch) longer, 5 mm (0.20 inch) higher and 351 kg (774 lbs) lighter than Volkswagen Arteon Shooting Brake (2018).
Volkswagen Arteon Shooting Brake (2018) is 8 mm (0.31 inch) wider and has 75 liters (2.65 ft3) bigger cargo space than Opel Insignia Grand Sport (2017).
