Mike's advice is spot-on. If you really want traction get true summer tires and change out for winter tires if the climate requires it. I tried to use UHP all-season tires with the best rating according to the reviews of Tire Rack -- Pirelli P-Zero Nero A/S. Horrible mistake. Yes, they do better in the winter. A lot better. But for the 5% of the time we have weather below 40 degrees here in South Mississippi, the trade off was poor. The Pirelli tires came nowhere close to good summer extreme performance rubber. I was busting them loose in second from a roll, even with gentle tip in at any and every rpm, and had trouble hooking in third, and that is with my modest mods and only 300-310 whp.
This is a high performance car. It deserves true summer performance tires. I could not wait for the Pirelli's to wear out. When they did, I went with Yokohama Advan Neova AD-08's in the stock size. The difference was positively transformational. These tires should not be driven at temps below 40 degrees F., but I found that they did well on down toward freezing. For the short time we got true freezing conditions, I have another vehicle, an SUV.
Dry and wet traction and braking on the AD-08's in normal temps is astounding. Turn it is extremely precise. This is probably the closest thing you can get to R track tires and be DOT legal and have reasonable tread wear. Honestly, they are wearing better than the A/S tires did.
The problem with tire wear on our cars seems to be mostly due to the negative, non-adjustable camber on the rear tires. They wear like crazy on the inside due to the negative camber and go bald or cup on the inside long before tread depth becomes an issue. Regular rotation just delays the inevitable but a little.
