Last Month the Japanese try to retrive this mod a little bit more. They played in the at 2pm CET. At the moment the gametracker,com Server Monitorring is off. Hope soon they turn it on. The ranking seems to work.
The problem with pack racing is that theres always one or two that spoit it. Take your standard oval ring track, you can garantee that while some will racing round it, someone else will go backwards and try and smash into everyone. So you make it a really wide long track, well as people spin and make mistakes fewer and fewer people end up left, and until the leading person is by themselves without anyone posing a threat.