These are all great, but I wish they could put them all together into one large GT/Sportscar Mod. You have the ALMS Mod, which has M3s and such, and now the Diablo coming. It is hard to keep up and I hope you can put them all into one mod.
But I cant wait for the Indy mod, from the same people who made the FIA GT one.
go the www.simbin.com for the FIA GT mod (go to the download forum) as for the tracks, there are none out yet but Mugello and Fiorano or to be released soon