A lot of it depends on what your priorities are. If your goal is to have the tire last 40,000 miles, then I am not really all that familiar with what would work best. I autocross my car and want to get about 15,000 miles out of a set. Some autocross specific street tires that have a good reputation are the Hankook RS-3, Bridgestone RE-11, Dunlop Direzza Z1 Star Spec, Michelin Pilot Super Sport and Nitto NT-05. There are others, but those are a few that come to mind. If you want to get a little more life out of tire and drive in the rain much, people seem to be happy with the Continental ExtremeContact DW, the Hankook Ventus V-12 evo is also supposed to be good. If you want more grip than those tires offer, the Nitto NT-01 is a good entry level track tire, but don't expect more than 5-8k miles on the street. I had the Nitto Invo for my first set on my car, they were a decent street tire, they had low tire noise and we good in the rain, they lasted 20k miles, but the sidewalls were a little soft for autocross. I have the Dunlops now, I think I will be pushing it to get 15k miles on them. They handle better than the Invo but are noisier on the street, and I am not particularly sensitive to that. My next tire will probably be the Michelins.