Now I just need to find a co-driver for a 1,100 mile (one-way) drive at the end of April in the SLS.

It's the Pro level AMG academy, which includes a lot of free lapping in everything from a AWD E63S to the SLS. One on one instructor most of the time. I got a nice HJC racing helmet by winning the Autocross competition at the 2-day Road Atlanta event I did in Sept. that they personalized with my name on the sides that is approved for use, so I've got that going for me. Never been to Austin or COTA, but I hear it's great.