OK, I'm back....I've been driving all weekend. Gotta say the tires make a huge difference. I'll try to answer the questions above:
The Enzo tire is a 35 series. It is the largest that will fit. I measured carefully, but still wasn't 100% sure. The circumference is 88 inches. Without any (and I do mean NONE) tread, the circ. of the originals was 84". There is about 1/2" clearance to the front plastic liner. After some aggressive driving, I heard no rubbing. They visually are VERY different from the 30 series. Took me a few minutes to get used to the look.
Yes, I left the run flats up front. They still have 2000+ miles on them while the replacement tires sit in the living room. They are Michelin non-run flats. 285 35 18's. I know, another small bump in size.
I plan on lowering the car. That will make the tires completely fill the wheelhouse. This is the look I wanted from the start. As soon as someone has a reasonable way ($$$) of lowering the car an inch....
I took pictures, but left the camera in the car at home today. I'll post them here tomorrow.
Now the driving eval: THE RIDE IS MUCH BETTER. I guess I knew it would be, going from stiff 30 series run-crap sidewalls to 35 non's. The traction is MUCH better. The Michelins were slicks and I still couldn't keep them from spinning. The Enzo tires will still break loose, but it is much more difficult. They're new so they will get better as I put miles on them, and the temp warms up. As far as mixing brands, I never believed it was a problem. Mixing run-flats and non? The rear end now feels stable, the front end still wants to follow every groove in the road. Handling balance is different now. The car still will not understeer, but the backend feels more glued to the pavement. It will be interesting to feel the difference when I put the new fronts on.
