Bridgestone RE-01Rs are probably the best you can get right now. They should be along the lines of an S0-3 or T1R, but significantly faster. $150 a pop for 225/50R16. Or, You can land Azenis 615s for $118 from discounttiredirect.com. The Bridgestone is more refined and at least as fast, the Azenis gives up some civilty to provide you with ferocious grip for less money.
Cheaper tires:
ES100s are not fast. They do feel really good though. The carcass is great even though the compound is outdated.
ZRis are faster and pretty sticky, but the carcass sucks compared to the Yoks.
The Kumho SPT is possibly the best of both worlds. I have not driven them in anger, so I can't tell you anything for sure, though. I'm considering picking up a set if they ever offer a 14".
The Ventus Z212 wears very quickly. For street use I might choose the Kuhmo MX over the Hankook. The Hankooks are better in the wet, but the MX is going to last longer.
ZE-512s are good tires. The carcass isn't very sporty, but the compound is surprisingly grippy for an "all-season".
