1) Normal,
2) Racing mediums only
3) No limit
4) The only tuning allowed under tuning prohibited rules is changing the engine limiter by de tuning, and brake balance,
5) uncertain on the lap count, but the cut off is 1 hour 30 minutes + 1 lap,
6) There are only 2 cars that can double up, but 1 is by rotation and cannot be used by the same user every event, these are the Weider HSV and the 350Z, The Denso Lexus and PETRONAS Lexus can be doubled up, but with Toyota and lexus being grouped together they are allowed 8, as long as both Lexus's are spoken for then the supra's are free range, The car list under each manufacture is in the OP, if its not in the OP its not permitted,
7) ABS maximum is one, all other aids are off,
This information was in the OP, but now it is not, And when I edit the OP the things are still there, when I save it, the OP completely changes, No idea what's wrong there