Actually there were usually 3 groups- The people who just wanted to go for the "experience", a group that was serious about racing and was taking the first step, and the group that really wanted to be a better driver and get more enjoyment out of driving a nice street car or possibly doing some open track events. This last group was probably about half the people we saw.
For the most part, I think they came away with more respect for the machine which hopefully reduced the number of incidents you might see. We had a few also that were now convinced they were awesome drivers that could do no wrong. We had one guy at Road America leave the last day of the school and promptly total his IROC Camaro and break his legs.
We would also get letters, some times a year later thanking us because they were able to avoid an incident based on their new found skill. I think a part of that is that now the driver would actually anticipate more and actually try and avoid a crash. Many times I have seen people just freeze and drive right into a crash.
Just my observations, worth a minimum of $.02
