Hello; Bob Chandler might have started showing them off, but I spent a fiew years in Alaska 63/65 . The guy next door had a Jeep wagoner with tractor tires on it. I'm guessing he used a step ladder to get in. And he had friends with similar machine . I was in to drag racing so didnt pay much attention , but you couldn't miss it! Big Pete is not as "unique" as you think. It is a copy of Super Pete; built, owned and operated by Mike Welsh who also built, owned and operated Monster Mash the Father of Freestyle. Look it up. There are many videos right here on youtub.