About the suspension bug, I agree that LFS shouldn't allow this to happen, but I think it is caused by faulty suspension geometry.
This front double wishbone suspension is taller on the inner points than the outer points, so when the suspension is compressed, it gets more positive camber. It's the opposite of what double wishbone suspension should do. When double wishbone suspension is compressed, camber should become more negative. The effect is to keep the wheel more vertical when the car leans.
To fix this, the upper pivot and lower pivot should have less distance between them, compared with the corresponding points on the object that the wheel is connected to. Please tell me if my explanation doesn't make sense.
I was trying for a short while to find if this car really has such advanced suspension anyway, but can't find an answer so far. I believe Macpherson strut is more common (cheaper / more compact). But that is not to say that this car shouldn't have double wishbone - I just couldn't find it.