Kia Niro (2015) is 105 mm (4.13 inch) higher than Opel Insignia Grand Sport (2020).
Opel Insignia Grand Sport (2020) is 522 mm (20.55 inch) longer, 58 mm (2.28 inch) wider, 383 kg (844 lbs) lighter and has 63 liters (2.22 ft3) bigger cargo space than Kia Niro (2015).