BMW 5 Series Touring (2020) is 109 mm (4.29 inch) longer, 32 mm (1.26 inch) wider and has 80 liters (2.83 ft3) bigger cargo space than Opel Insignia Grand Sport (2020).
Opel Insignia Grand Sport (2020) is 63 mm (2.48 inch) higher and 536 kg (1,182 lbs) lighter than BMW 5 Series Touring (2020).