I was at the track yesterday and a fellow named John was running his loaded, stock '06 GT auto. The car was consistant 13.4's with 1.9x 60ft times.
On the other hand, I had trouble getting my 60ft's below 2.2secs. The car was hooking really well and subsequently bogging. I could have allowed a lot of clutch slip to get a strong launch, but that is something that I am not prepared to do on my daily driver. With that, my best was 13.87@102.5 with a 2.19 60ft.