Temperatures are now high enough in Virginia to consider summer tires. I was lucky enough to get 2 sets of wheels when I bought my car, a set of stocks with no tires and a set of ford performance wheels OEM size with General AS-05's. I was considering putting the AS-05's on the stock rims and getting some Firestone Firehawk Indy 500's for canyon carving road trips with the family (lower tire noise a plus). Will i even notice a grip or handling difference since the Indy 500's are 340 treadwear? Also, is it too much to ask of the Indy 500's to be my tire for my novice Autocross season? Open to any suggestions for a dual duty Canyon/Autocross setup.