I'm not partciularly worried about the pinch....just if it fits under the car. I had 295's pinched on a 9.5" wide wheel on my previous vehicle and it actually handled very well, but another half inch may be the straw that broke the camels back. Only one way to find out!
Yeah....these strut cars REALLY like camber. Some of my co-workers run a BMW very successfully in champ car and they have an incredible amount of camber to get even tire wear. Unfortunately, the nature of the game for us is just going to mean premature tire death.
I'll likely be testing whatever the absolute largest tire I can stuff under the car, as well as 265's and seeing which ends up being faster....and hoping the SCCA gods answer my praryer and give us an ST* class to play in