Audi S8 (2014) is 234 mm (9.21 inch) longer and 93 mm (3.66 inch) wider than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 45 mm (1.77 inch) higher, 1394 kg (3,073 lbs) lighter and has 55 liters (1.94 ft3) bigger cargo space than Audi S8 (2014).
