Buick has been dominating headlines lately - and thankfully, it is for all the right reasons. The introduction of the Buick Regal is a welcome change for the brand. The Regal is sourced from General Motors' Opel, which was just announced that GM would be keeping. In typical fashion for those in the automotive blogosphere, we're always looking forward to the next thing - particularly when it comes to performance. The standard Opel Insignia has been brought over as the Regal, but Opel also has the OPC (Opel Performance Center) performance model that many are pining for. Speculation about future Regal models has mainly centered around bringing that model over here as the Regal GNX. Car & Driver talked to Bob Lutz about this possibility at