Saturn Aura Redline Preview: Opel Insignia OPC Testing At Nürburgring

Judging from these shots taken by KGP at the Nürburgring, GM is already working up a high-performance version of the new Opel Insignia » 8/19/08 2:40pm 8/19/08 2:40pm. Suspected to be powered by a twin-turbo version of the 2.8-liter V6 found in the standard Insignia, the added boost should up output to at least 300 HP. In Britain, the car will…