BMW 5 Series Touring (2018) is 93 mm (3.66 inch) longer, 39 mm (1.54 inch) wider, 52 mm (2.05 inch) higher and has 10 liters (0.35 ft3) bigger cargo space than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 301 kg (664 lbs) lighter than BMW 5 Series Touring (2018).