[twobjshelbys]

These street tires will likely kill you the first time you make a good left turn under modest acceleration. The rear end is going to break loose...

You should stay with the tires mentioned before: Avons are very good and are sticky when cold and better when they warm up. I had Goodyears on my Cobra and the next generation on the Ford GT but they were hard as a rock when cold.

I don't know if they are avaialble in the Cobra sizes but I switched to Bridgestone and they are super sticky warm. The Ford GT sizes end up with two different tire "models", check to see if they area available in your size: Bridgestone RE050A (N1? - these tires were original factory tires on the Porsche Carrera) , and Bridgestone RE050A Scuderia (original tires for Ferrari Enzo).

On the street they are sticky enough that they will pick up small gravel ("grit"), and when warmed on the track were soft enough to take a thumb print. Expect about 5K miles out of a set of rears (and that's without burnouts).

People now swear by the Michelin Pilot Sports