It affects more than the guardrail situation as well. Any collision with a car laden with extremely heavy batteries as low to the ground as possible has inertia and force that was not calculated into road safety systems originally.

This can be corrected, but the first step is recognizing and accounting for it. Which seems to upset people for reasons I cant comprehend.

But as the other guy said, the safest systems are the ones with the fewest cars on the road in general.