BMW 5 Series Gran Turismo (2020) is 30 mm (1.18 inch) longer and 11 mm (0.43 inch) wider than Opel Insignia Sports Tourer (2020).
Opel Insignia Sports Tourer (2020) is 35 mm (1.38 inch) higher, 145 kg (320 lbs) lighter and has 30 liters (1.06 ft3) bigger cargo space than BMW 5 Series Gran Turismo (2020).