I have attended several NASA High Performance Driving Events here in the WEST coast...and the comment I have about them here is that they are much less structured than BMW and other car club events. In some run groups they let people pass "anywhere"...(Group 4)..and Group 3 can pass everywhere on the last run they have on track. If you are secure in your driving skills, and more importantly, comfortable with the OTHERS than are running in that group, then you should be ok. But, if you are tentative, I would think twice about the NASA events. Now, please remember that the west coast events may be totally different than the east coast events...so bear that in mind. The important thing is to go out and learn what your car can do.