i'm still confused as to how they know he over revved the engine? the guy who owned the car has more than enough money to pay for repairs so i feel this is more of a moral issue of a guy who can pay forcing a guy who can't and will probably lose his home because of having to pay.
An on board data logger would have logged engine RPM, gear changes, throttle position etc etc, and where on the track the incident happend! Engine management would most likely have an interchangeable "chip" that would govern throttle RPM, but useless against over revving by missing a gear, or engine braking etc,
Uploading this data to a laptop, will show, and prove exactly what happened...
Thom