My KDWs are shot and while the tread is still good, they are hard, loud, and starting to crack. Currently I'm runnimg 275/35/18 Front and 295/35/18 rears. If I don't do wheels my car will be stored on the tires over winter in a non heated garage so freezing temps are an issue. If I end up doing wheels, I'll use the old set for storage. Mileage is no issue since I put around 800 miles a year on the car. I keep seeing Toyo R888 as a recommendation for the rears and Toyo fronts. I was also looking at nitto NT05's all around. I don't mind a drag radial style tire on the rear as long as there's no issues with my non reinforced torque boxes and the freezing thing. I usually do not go to the track but may go occasionally.