Some GT3s such as the 458 , MP4 12c and R8 LMS Ultra have been racing in historic series and been performing well. Maybe a possible individual class for the future.
“There are believed to be more than 100 GT3 race cars in North America that are no longer eligible to run in the professional series that they originally competed in,” said Trans Am Company President John Clagett.
“These cars have a lot of good life remaining in them, but there are not really any good places for those cars to race competitively. The Trans Am Series intends to deliver a professionally-run series for drivers to compete in these cars and fully exhibit their potential.”
__________________
It was fun while it lasted, have enjoyed the people I've met but the measuring contests and arguments over who's more insider and who's smarter has just made it not worth the effort any longer. It should be fun, not work and it's just work to find actual information.