I wouldn't trade my X51 997 S for a 996 GT3 because I don't track the car and I find it to be a great all around car. For the track, I use my 1987 Carrera 3.2 which, even though underpowered, has no driver aids whatsoever and provides plenty of thrills at the track. It makes one keep up momentum and speed in order to make good lap times and is as old school Porsche driving as I'd go. I am an instructor for PCA DEs, by the way.