I recently acquired a 2011 Mustang GT, and am starting to set it up for autocross (SCCA CAM-C). I am also trying to put off a gear and diff swap until later, which means staying with a tall-ish tire this season to maximize the 3.73 gear already in the car. That has me looking toward a 285/35-19 (or 305/30-19) RE-71R on 19x10's square (likely ET40 or ET42 depending which way I go on wheels). Now for the questions... 1. Will this setup fit under the fenders? This will be a dual-duty car, street and autocross, so I would prefer to avoid tires protruding from the fenders if possible. 2. Has anyone tried the Flow One F4 in 19x10 square on an S197? Tire Rack has a really good deal on them right now, but lists it as a rear only fitment and cannot confirm how they fit up front.