GT2 clas field:

2 BMW M3s (GT2S class)

7 Porsche 911 GT3 RSRs

1 Porsche 911 GT3 RS

Three Panoz Esperante GTLMs

One Ferrari F430 GT

Two Spyker C8 Spyders

I think either one of the regular ALMS Porsche 911 GT3 RSRs or one of the Multimatic's Panoz Esperante GTLMs win take the GT2 class win.