I'm switching from the Pirelli Scorpion Zero's (great and sticky but hard to find and expensive) to Kumho ECSTA STX which appears to be very similar in quality, is V rated, and around a $100ea. They come in following 16" sizes but realize all 16" tires are going to have a relatively tall sidewall which is NOT conducive to fast cornering.
255/65R16
255/55R16
235/70R16
275/70R16

http://www.kumhousa.com/Products/Ptn...tion=PtnDetail