Opel Insignia Grand Sport (2017) is 902 mm (35.51 inch) longer, 168 mm (6.61 inch) wider and has 62 liters (2.19 ft3) bigger cargo space than Subaru Trezia (2017).
Subaru Trezia (2017) is 140 mm (5.51 inch) higher and 320 kg (705 lbs) lighter than Opel Insignia Grand Sport (2017).
