Audi TTS (2014) is 89 mm (3.50 inch) wider than Opel Insignia Grand Sport (2017).
Opel Insignia Grand Sport (2017) is 699 mm (27.52 inch) longer, 110 mm (4.33 inch) higher, 95 kg (209 lbs) lighter and has 119 liters (4.20 ft3) bigger cargo space than Audi TTS (2014).
