there is no matchmaking, yet. but just choose your location, track and driving options and a list of lobbies will apear. but this were it gets tricky. I have found people are not puting any info in there text box, or just stuff like 'clean race', 'uk', 'hello' or 'race lolz'!'
You have no indication of what kind of race you are goin into other than track.
Hosts need to put in relvant info about the lobby, for example: 'TC, ABS off. track voting on, qualifing on, German cars only' this would make it a lot easier to find a race that you want participate in.
I think part of the problem is people dont know what options are avalible for them so just set up a lobby without any restictions, and no info!