The battery system 2m x 1.4m is enormous in size and weight, as much as 700 kg and 22-27% of total vehicle weight. At a minimum, this. “Load path distribution in the structure of extruded profiles”. which makes up 47% of the sophisticated crash structure of the Audi e-Tron. In crash, including the side pole crash test,. Stiff & Strong and Straight Extrusions Providing Structural Support, Crash Management, Fluid Transport and Robust Mounts Back to Top >>.