It may or may not be. The GT2 hasn't been raced in an actual GT event since the late 90s. I'm sure it will be a fine road car for those looking for thrills.
However I don't understand how you can say the GT3-RS, a proven race car, is "b-list" despite multiple ALMS and FIA GT victories.
http://www.oneighturbo.com/fia-gt/fi...e-911-gt3-rsr/
http://www.f1sa.com/index.php?option...ans&Itemid=249
The GT3-RS has a very respected motorsport history.