Audi R8 (2018) is 87 mm (3.43 inch) wider than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 487 mm (19.17 inch) longer, 273 mm (10.75 inch) higher, 55 kg (121 lbs) lighter and has 334 liters (11.80 ft3) bigger cargo space than Audi R8 (2018).