This is the picture I think of actually when I saw that picture.
Actually though, the guy driving that car is a legitimate driver competing in NASA classes. Plus the car is a fully build race car with some type of motor swap. That session was during the Free-For-All hour at the end of the day which allowed every driving class to be on the track at the same time. Passing rules were "anywhere you can make it with a point by."
Anything in the twisties he had a huge advantage with driver skill, weight, brakes, and tires (he had slicks and I was on summer-only street tires). On the straights though I would of course dominate. Looking at lap times, he would still best me by a little this event. I imagine in time I would surpass him, but in the end that car/driver combo was good.