Hey, I know what to do! They could build two rubber tunnels that the cars could run down. The tunnels could be painted so that if something goes wrong, no one will have to see it happen! We could have a light at the end to see who wins! Oh wait... They would both have to win, otherwise the loser (oops!) I mean the guy that doesn't finish first, would feel bad. That would make everyone else feel bad to.
Now there's something people would watch!

"use it 'till it breaks, replace as needed"