I saw a recent race where a guy bounced off the ground and then through a pylon after a 9 G turn reversal. He tore off part of the wheel pant fairing on his left landing gear. Speculation was that he grayed out in the turn resulting in misjudging his attitude approaching the gate.
Regardless of what happened, he was about a foot or two away from becoming a greasy spot between the pylons. Scary, but that sort of thing is completely normal for racing regardless of what kind of vehicles are used.
edit - this was the first link JB posted. You can't see the ground impact through the pylon debris, but when he zooms past you can see the front of his left tire which means the fairing on the left wheel is missing.
Interesting geometry there too... If he'd hit bad enough to trash the plane but had bounced, the wreckage could have gone right into the crowd.
