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Fiberglass won't give you any protection in a crush

Damn, just put the tank of air in front. Any wreck will cause a mighty explosion balancing out the various vectors involved. I haven't done (and couldn't do, really) the math, but this seems perfectly reasonable.




Or use the compressed air to fill a whole vehicle airbag that triggers on items on a collision path.

This would mean that your safety systems are highly dependent on software and effective sensors, but hey, cheap car.


It would also mean that your level of protection depends on the amount of air in your tank.

As someone who chronically forgets to fill-up, I wouldn't like that idea...




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