I was walking across this area of the Clipsal 500 track the other day ......and got to thinking you could sail a yacht here.....it would be a hoot in winter with 15knots of wind and a good show for the public.
And guess what it's got a GREAT Starting Grid.......
Several Landyachters have sailed on "Mallala" motor race track many years ago....(now some stories could be told about that event!!!)
and this track is wider than "Mallala"
Have a look on google maps for the service road layout as well.