BMW 6 Series Gran Turismo (2018) is 177 mm (6.97 inch) longer, 46 mm (1.81 inch) wider, 26 mm (1.02 inch) higher and has 69 liters (2.44 ft3) bigger cargo space than Opel Insignia Country Tourer (2017).
Opel Insignia Country Tourer (2017) is 195 kg (430 lbs) lighter than BMW 6 Series Gran Turismo (2018).