Mazda CX-30 (2015) is 27 mm (1.06 inch) higher, 220 kg (485 lbs) lighter and has 315 liters (11.12 ft3) bigger cargo space than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 518 mm (20.39 inch) longer and 61 mm (2.40 inch) wider than Mazda CX-30 (2015).