[Dean]

They changed colors on me... Blue is now the endurance pad. It used to be red.

I think using another tank and putting some ultra high density foam between it and the real tank would work well, but what do i know. Other Subaru Rally teams must have the answer for this.

Lexan is medium to high velocity impact resistant, but not low speed or wear resistant really and has little structurally strength. It deflects way to much for that purpose I think and can be gouged/ground/chipped away fairly easily. I believe a good drag over a sharp rock and it would be toast.