Yes, the Bathurst 1000 for V8 Supercars.
The charity is the British Heart Foundation. http://www.bhf.org.uk/#&panel1-1
TORA, the officialonlineracingassociation.com, is sanctioned by Motor Sports Association http://www.msauk.org/custom/asp/home/default.asp
Rules, registration and more info at: http://forums.theonlineracingassociation.com/f394-msa-tora-charity-event-1000km-of-bathurst
If you are interested, but need a teammate to participate, feel free to visit my team's [Ax4x] website, as we are looking to field as many entries as possible. http://ax4x.forumotion.co.uk/t83-msa-tora-bathurst-1000-charity-event
