Thanks for the perspective, Greg. I wonder if running in ITR trim at 245 pounds lighter is a better way to roll. Heck, sure is cheaper than doing a full on motor. I was quoted a full race motor making 300hp at the crank for $18,000. Lotta dough to run heavy and maybe not be that much faster than I am in ITR trim.

The smart money is to buy an M3 that's already setup for WC methinks. But for now I'll just run ITR trim and have fun - and put that $18,000 into a tire budget :-)