[Neil de Guzman]

There are the Asian, European and American GT3 cups.

Truly national championships wouldn't make much sense here on SRS. You would be lucky to find more than five people for a race with only German/British/French/whatever participants.

Sure, it's much more understandable.

So do you have a link for the European GT3 Cup? I can't see it in SRS website.

I don't know what kind of link you are looking for, but if you scroll on top of the COMPETITION TAB in one of the TABS above, click RACE and you will see the schedule of different races and EURO GT3 on the list. You can view schedule and cars and tracks required there and that's all. Are you looking for a discussion thread or something like that?