that is vary cool and crazy.
watching that thing do effortless 360's reminded me of this, a few of us built it in shop class our senior year in HS (1980)
shortened ltd frame, 390, locked rear end, could actually get board doing 360's
i put a "slow moving vehicle" sigh on it in hopes to convince the authority's it was a farm vehicle
one of the police officers picked me up one day as i was walking home from school, and politely informed me that if they ever caught me driving it i "may never see the light of day again" they never did.