I've been trying to find something to put on my car, since it's tuning and final setup. I've bounced back and forth between Michelin Pilot Sport PS2s at all four corners for the street and BF Goodrich Drag Radials for the rear while at the track. I need something with LOTS O' GRIP. I talked with a tire dealer in the local area who sponsors quite a few racing events. He suggested I try the Toyo RA-1 in 305-35R18 at the rear and 275-40R17 at the front as a matched set. He stated they are a road racing tire and have the same adhesion as the drag radial when properly heated up AND they have better street "stick and cornering" than the Michelins. I checked them out at Toyo's website. They seem like they might do the trick. Anyone out there have any experience with Toyos on their Vette?