Just a quick question. I am gettin Black C5 Z06 rims on my C4. They are going to be 17x9.5 in the front and 18x10.5 in the rear. My question is what kind of tires should i put on the rear. I am looking for something sized around 315 plus or minus. I just want something wide enough in the rear to stand out and match the fenders to add to the aestetics (sp?) of the car and still get good mileage on them. Anyone have any suggestions feel free to answer. Thanks