I'm not on a list, but I'm interested in the turbo. I love the 997S that I've had for about a month. It's the finest car I've ever owned, and I've owned quite a few. Nonetheless, what intrigues me about the past turbo models are how easily they can be modified to accommodate large horsepower gains through modification. Assuming the 997TT has the GT1 derived dry sump engine, it would seem to me that this would allow one to maintain the performance level of the car relative to other cars for quite some time.