[purpleRac3r]

The ride quality of the A/S Michelins is much softer than the factory tire. Chalk that up to the fact they are not run-flats. Any run-flat will by design be much firmer than an equivalent non-run-flat. The A/S tires also handle very well, no sensation of roll that I can detect. Nice feel in the "twisties", but less harsh, even on really poor road surfaces. They also grip a little better on cool pavement, and on wet pavement. They just aren't as grippy at the upper limits seen on the track or autocross course. I may very likely stick with them once the factory tires wear out.

The Nitto Invos are excellent too, as Glen says. A number of friends in my Corvette club are running them on C6 Grand Sports and even a couple of Z06s. I've heard nothing but good comments from them on the Invos.