Would anyone enter? Would anyone watch?
On the discovery channel there’re is a Robot Demolition contest, and it’s widely viewed. I’m sure a larger version with cars would attract attention.
The participants would have to have enough liability insurance to protect the public against any runaway cars that the owners could no longer control.
I agree. The robot contests are about a 1/20th scale version of a driverless car. It seems to me, that in a stadium with thick, 8-foot reinforced concrete walls with a 20-foot hurricane fence on top, the viewing public would be safe. Demolition derby cars won’t sail like NASCAR racers might.