From offroad racing.
http://www.offroadracing.com.au/index.php?option=com_content&view=article&id=1666:shane-cottee-recovering&catid=28:start-me-up-racing&Itemid=350
I don't know for sure as I wasn't there & all my info is via other people. Very basic info is Shane was driving a four seater buggy at the Portland sand dunes. It went over a large drop & landed on rocks.
Update from offroadracing.com.au. The big fella is making progress.
http://www.offroadracing.com.au/index.php?option=com_content&view=article&id=1672:shane-cottee-update&catid=28:start-me-up-racing&Itemid=350