They need to be gold. They need to be light. They need to clear R/T brakes. That's about it for strict requirements.
I would like to keep a decent look if possible and I would like some relatively affordable tires also. I'm willing to spend the money to do this right once. I plan on using these for serious autocrossing, but I will be taking it on long road trips also.
I guess the real question is if there is anything out there that will beat the RPF1s for weight, price, and fitment?