Opel Insignia Grand Sport (2020) is 601 mm (23.66 inch) longer, 168 mm (6.61 inch) wider and has 355 liters (12.54 ft3) bigger cargo space than Suzuki Ertiga (2017).
Suzuki Ertiga (2017) is 230 mm (9.06 inch) higher and 100 kg (220 lbs) lighter than Opel Insignia Grand Sport (2020).