Ok ok 
I believe I can manage it...
I can try to not park in the "desert" and find buildings or trees that make shadows on my car, or "cover" cam with shadows thanks to position that cam will have in the car.
I can also don't use cam at all in extreme conditions...
At the end, the important think is that it do NOT explode (with supercap) and NOT catches fire, when is on or off!
If one day the case will deform itself and also if cam will stop to work, without other problems for my car, this will not be a biggest problem.
I believe I can manage it...I can try to not park in the "desert" and find buildings or trees that make shadows on my car, or "cover" cam with shadows thanks to position that cam will have in the car.
I can also don't use cam at all in extreme conditions...
At the end, the important think is that it do NOT explode (with supercap) and NOT catches fire, when is on or off!
If one day the case will deform itself and also if cam will stop to work, without other problems for my car, this will not be a biggest problem.