Well, autocrosses and no small amount of daily hoonage has worn down the rears on Falken Ziex 912's. They were good daily driver tires, but I'm getting out to autox more this year so I want something a bit better. That said, I don't need the expense and short life of RE11's, pretty much the only competitive ST tire in my size. I'm thinking more along the lines of the good mid-range summer tires. I just want something that won't fall on it's face at autox.
The car is a 86 MR2 running 205/45-16 (and I want to keep that size). Ideally, it'd be nice to have an additional set of 15's with competitive ST tires, but it's not in the cards right now. The car isn't competitively built anyway, so I don't see the point in trying to run with the big boys in the Atlanta region. I'm still just learning and having fun. These tires will be used for daily driving as well, so wet traction is important to me, especially in a rear-heavy short-wheelbase car.
With all the back-story out of the way here's what I'm considering. They're all pretty much summer tires in the 300-ish treadwear range. While I don't want to cheap out, I feel that anything above $100/tire is getting a bit too spendy (again, I know it would help here to have 15's). Feel free to throw in any choices I've forgotten about.
Yoko S.Drive - they're the known quantity for me. We're using them on our integra. Sidewalls are a little soft, but the compound is sticky enough to compensate most of the time. This also makes them forgiving dailies. Price is on my high side.
Fuzion ZRi - I kinda hate the branding, but the Tirerack test reviews says they're a good tire. Same price as S.Drive and tests pretty evenly. I'm leaning towards these just to try something different.
BFGoodrich G-Force Sport - tests a bit below the first two, but is also a little cheaper. Just looking for first-hand experiences.
Sumitomo HTR ZII - Dunno anything about them and no Tirerack testing to go from. Haven't heard very many good things about the brand in general though. They are cheaper though.
Nitto NT NeoGen VR - Total dark horse to me. I've never owned Nittos since I've always ordered from Tirerack. Moderately priced from discounttiredirect.com

