*

why not...

I hardly think it's obvious either. The "obvious" answer is as Francis suggests, but I don't really see how that would be relevant to the description of this kind of person. Then again, it IS marketing blurb, and we all know how seriously any of that should be taken ...

I tend to think it might (be meant to) mean something like "brought up to handle a crisis, expecting crisis at any moment, brought up in an unstable, changing environment" - which might (of course I'm no Sigmund Freud) mean they are not at all inclined to settle down and purr, but are rather perched on top of each other's heads with their claws firmly embedded in their scalps but ready to run for it at the sound of a cork dropping. Hyper. Of course to my mind this does not sit well with "rational, simple, and down-to-earth in their daily lives" , but then I'm Taurus ...

Of course by putting in something meaningless that appears to point in one direction while being contradicted by something else on the next line, they can be sure their dealers will try to throw the vehicle at anything that moves close to the forecourt gate rather than size them up and see if they meet what might otherwise be strict criteria regarding the target buyer ;-)

this is like a conclusion based on the rest of the context and suggestions

The Fr is shorthand to me. I'm not even entirely sure whether it refers to the parents or their children. Maybe this might cover it.

above any crisis?

another suggestion

I don't think this one has been suggested yet (apologies if I missed it). I like it because it's a bit neater than the ones that require the addition of 'who + verb' in English

perhaps that's stretching it - but you never know with car manufacturers.