SPC charged $100/hour to rent the pad, but it's not as easy as that. They make you jump through all kinds of hoops just to run there. But, the biggest thing is insurance. They require appropriate event insurance, as do all of the typical autocross sites. So, unless you can get one of the local autocross clubs to "sponsor" a test sessions using their insurance, you'll have a hard time. That goes for SPC, Brooksville, etc.

One place you probably could run would be East Bay Raceway oval. It's dirt, but it's a good place to test. If anything's gonna shake loose on the car, it will shake loose there! I think Jeff can get that for something like $500 for a day, they include insurance, and they pretty much don't care what we do.