Hyundai Elantra GT (2020) is 265 kg (584 lbs) lighter than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 573 mm (22.56 inch) longer, 60 mm (2.36 inch) wider, 47 mm (1.85 inch) higher and has 152 liters (5.37 ft3) bigger cargo space than Hyundai Elantra GT (2020).