My wife drives her Lexus IS year round and it too came factory with low profile tires. I put the Conti Extreme DWS on it and I thought they were great. I had to drive it on a snow covered interstate at Christmas (Santa can't be late!) and was quite pleased with them. Liked them so much that I never bothered putting the factory tires back on as the the DWS's were also great in the rain and also wear great. Of course, the Vette may be a totally different animal with them on, but I don't think you can do better than the DWS's as a UHP tire to get you through in a pinch.