Audi A5 (2018) is 100 kg (220 lbs) lighter than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 240 mm (9.45 inch) longer, 10 mm (0.39 inch) wider, 142 mm (5.59 inch) higher and has 106 liters (3.74 ft3) bigger cargo space than Audi A5 (2018).