Audi Q8 (2020) is 81 mm (3.19 inch) longer, 138 mm (5.43 inch) wider, 194 mm (7.64 inch) higher and has 324 liters (11.44 ft3) bigger cargo space than Opel Insignia Country Tourer (2017).
Opel Insignia Country Tourer (2017) is 670 kg (1,477 lbs) lighter than Audi Q8 (2020).