Opel Insignia Grand Sport (2017) is 255 mm (10.04 inch) longer, 64 mm (2.52 inch) wider, 294 kg (648 lbs) lighter and has 20 liters (0.71 ft3) bigger cargo space than Seat Leon ST (2020).
Seat Leon ST (2020) is 1 mm (0.04 inch) higher than Opel Insignia Grand Sport (2017).
