Interesting. Food for thought.

I'd never considered roll over protection, or crash disable, but then I'be never built a car for the track.

As for electrical complexity, if it's properly documented, then troubleshooting won't be too painful. My biggest problem is ' brain boxes ' which are expensive and non-repairable.

I can envision a similar circuit, with all discrete components. A toggle switch feeding an on-delay n.c. timer, in parallel with a pressure switch feeding a relay, the relay grounded through a roll over switch. The relay feeds a fused supply to the fuel pump.

I think that circuit will satisfy everyone.