Gorecki

Thats not a car.

And Airbus? Uber? Really?

The problem is not only the hinge and the display will be stressed in the folding part, you will damage pixels in time, the fluidness of the display when unfolded will be compromised, you will see the difference, the display wont be uniform.

But another problem is the covering glass. How will the capacitive reception work on something like plastic? Can be "glass" folded and unfolded? Yes, it can, but it is extremely expensive and you can only bend it, not "fold", not in that small form factor.
 
Will the bend have weaker "glass/plastic" where you will see scratches after time, more so when this "fold" is wrapping one side of the phone with the display? Will the plastic be waterproof? That is a problem right now, but can be maybe solved. It probably wont be as hard as glass, therefore you can scratch it every time you put it in your pocket.

What happens when you drop it on this "fold"? Plastic is more flexible than glass, so it can better handle impacts, but how will it affect the pixels, or the capacitive layer?

Clearly, Samsung (and others) has a BENDABLE! (not FOLDABLE!) display, but doesn't know what to do with it. To build around it a fully working phone without these compromises is another story and much more difficult. When it happens, it will be just a PR prototype, I don't see any commercially viable product in the near future of lets say 2-3 years. And thats very optimistic.