I am a big supporter of the suggestion for an El Piloto race using the Scaley hi-impact cars; with provisos allowing either (a) slot-it guides, or (b) no-grip front tires, or (c) stock guide with fatter braids and a flag extension (made from an old credit card glued to the stock flag to increase depth).
"... get on your bad motor scooter and ride!"
Sammy with Montrose