Kia Cadenza (2014) is 53 mm (2.09 inch) longer than Opel Insignia Sports Tourer (2015).
Opel Insignia Sports Tourer (2015) is 7 mm (0.28 inch) wider, 37 mm (1.46 inch) higher, 64 kg (141 lbs) lighter and has 110 liters (3.88 ft3) bigger cargo space than Kia Cadenza (2014).