Clark was involved in the fatal crash of V8 Supercar driver Mark Porter at Mount Panorama Circuit.
In an effort to avoid the stalled Porter, he slid his car sideways whilst travelling at high speed.
The front right hand of Porter's car also hit the drivers door of Clark, critically injuring him.
Porter died in late afternoon of Sunday 8 October 2006 as the feature race was concluding.
Just two hours after the race, Porter's family issued a statement announcing his death.