It's part of the STCC league servers, they run one server in S1 mode (which I must applaude). Almost every other server only runs in Demo or S2 mode though, so if that's wetted your appetite and want to race elsewhere, stump up another £12 and upgrade to S2.
Do you get a license progress bar at the end of every race?
I'm often on that server lately btw, some good fun to be had. Quite a few idiots about as most of the good racers have reached silver license already.