This has probably been discussed sometime or another but I figuered i would just ask. I got 2011 WRX and I bought winter tires and installed them on the stock rims for my winter setup. I'll have another set of wheels for my summer setup but my dilema is that I'm not sure wether to go with the stock 17" size or go one size up to 18". I still have the stock summer tires that came with the car so it would be cheaper to go with 17's. The only reason I would go 18's is just for looks. The car is mainly a daily driver but I am thinking of autocrossing sometime. What do you guys think?