In Enter the Unknown there's a piece of new armour, the Shockrider Crash Suit, that reduces the strain caused by critical hits to the driver's vehicle by one. And in Beyond the Rim I seem to recall something about collision criticals (in the Raxus Prime chapter) causing strain to passengers aboard the ship.

Now, the thing is I can't find any mention of any of these in the core rules. Am I just missing something tucked away on a page somewhere? I actually like the idea of criticals, or at least collisions, causing strain to people in a vehicle or starship. And it also makes a very expensive suit of armour more worth the high cost. Can anyone tell me if they've come across this rule?

Some critical hit results cause strain to passengers/crew (for instance the "Jostled" result 10-18), beyond that I haven't found anything else - that's not to say there isn't something covering this elsewhere.