Washington is 90% tarmac.

We run 225/65 on 15 inch rims for gravel

The car is mostly WRC spec. Transmission, diffs etc. (front diff is 7.5 inch, rear is 9 inch) much bigger than the Group N Cosworths.

I have a set of slicks we are going to test in a week or so...they are 255... so we will see.