Drag radials make a HUGE difference on a 17" rim, probably more so than on a smaller rim. I would go with a Nitto drag radial myself, you'll hook as good on the street as a BFG and have way better cornering, treadlife and way better in the rain. As far as the tires you mentioned, Toyo Proxes were on the my Cobra when I bought it and I think they are pretty good tires, when I switched to the 18's they had Nitto 555's and didnt like those as much. Blew out one in the rear and put on used F'1's and they hooked alot better and are alot better in the rain. I would pick the F1 over the Toyo and the Nitto, I've never seen a 'supercar' come with either. But like I said, I would pick the Nitto Drag radial myself.