I got my ass handed to me by a GTS. We did a roll on from 40. Stayed side by side till I shifted to 3rd. He started pulling hard. I stayed in it up to 140, by this time he was about 3-4 cars ahead of me and still pulling. We stopped later on and talked for a little bit. He wouldn't "disclose" what he had done to the car, only that he has a lot of money in it. I have no excuses, my car was running like a dream, 19 psi just wasn't enough. Next time!