Thought I would start a thread of photos of both controlled and uncontrolled sideways track action. Here are a few older ones.
Porsche RS 550 driven by Frank Klienig at Ardmore.
http://img19.imageshack.us/img19/4196/cc42g.jpg
One for David to identify.
http://img816.imageshack.us/img816/2241/cc26.jpg
Jim Boyd in the HWM Alta.
http://img694.imageshack.us/img694/7438/cc85.jpg