[Perfectlap]

I don't think you have to own a Porsche to be a member. When I had my Miata I attended autocross events held by the Northern New Jersey Porsche Club of America. THey would ask me if I was a member and then charge me a higher entry fee since I wasn't.
I think as PCA member you can get cheaper car insurance through Leland West if youre Boxster is garage kept and you only drive it on weekends.