Those guys are local to me and I was actually at the filming for the last race in the episode.. They are good people and definitely not dumb as most people on YB are saying..

The producer is not car savvy in the least. He made them hold the cars up on the converter for a good 45s to get "the perfect shot" before He let the camera man bang the light. It was painful to watch. Rusty puked the tranny fluid out of the GN about the 330 because of it.