Kia Niro (2017) is 21 mm (0.83 inch) higher and 166 kg (366 lbs) lighter than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 557 mm (21.93 inch) longer, 51 mm (2.01 inch) wider and has 11 liters (0.39 ft3) bigger cargo space than Kia Niro (2017).