Yes, have been to a couple.
It's very loosely controlled. Nil scrutiny, no real street car groupings, just street, race, open wheelers, sometimes carts, etc. obviously need license and helmet, but that's about it.
Get 5+ sessions in, being about 15 mins ea. nice in the arvos when they crowd thins out. I go on weekdays because of the traffic. It gets pretty busy out there, and there can be some really slow cars and drivers.
Cheapest way to go to Wakefield.