Originally Posted by Norm Peterson
As soon as you essentially go aftermarket, why would you stop at 305/xx and 11"/11.5"? Particularly when Hoosiers in either A6 or R6 are available in 325 and 345 widths in 19"? People are running 315/30-18's on the lighter Mustangs as it is, and there are a few complaints that it's still not enough tire.
I've tried to keep both at an OEM/or at least within what you've suggested as a "stock" definition to have as much a level playing field comparo as possible.
I am unsure what else to suggest other than running one car on streets and another car on r-comps doesn't make it a fair *track* comparo to any *track enthusiast* except the manufacturer marketing purposes.