I am registered to run in the Sunday Solo group.
It would be nice if some fellow HybridZ folks could come play.
If interested go to www.cfrpdx.com and register through dlbracing.
This is about the cheapest track time you will find. Also, if you are first timers then this is one of the few events that allows Novices to run (with a driving Instructor).
I ran in this event last year as my first track day and had a blast. The instructors were great.