GT1 as a class is dead, IIRC GT2 will take over as a single GT category since only the DBR9 and C6.R were racing in the GT1 class. Lack of competition (well, it was competitive, but cmon, 4 cars?) and higher expenses lead it to the death. No problem really, since we have F430 GT2, 911 GT3 RSR, V8 vantage GT2 and Corvettes are being modified to fit into GT2 regulations.