Gday Mick
I went to the Red Bull Billy Cart racing held in Melbourne earlier this year...(I was taking a lunch break from work and stumbled over it)
AWESOME sight to see them flying down Landsdowne St... I can assure everyone it was standing room only as there were thousands there...BIG event.. I'd say far more adults racing than kids...
Anyways here is a link to what happened for those interested
Here
Looking forward to seeing your creation when the image problems are resolved..
Cheers