Bending of X-bars:
http://www.914club.com/bbs2/index.php?act=ST&f=2&t=46255&st=20
About 3/4 down the page.
After looking at the pic for a while, it seems the center of impact was further aft than the cross point of the bars, but they bent closer to the dash ie. NOT in to the drivers torso. I wonder if they were made to encourage bending forward of the seat.