Pure Americana. Just a dude who loved off-roading obsessed with putting bigger and bigger tires on his truck. Named it Bigfoot. Drove over a couple of cars and taped it for fun.
My dad’s uncle had built a truck up like the original one by the mid ’90s. He had a farm along a river, including land on an island in the river, and could ford the river in his truck to reach the island (he could do the same in a tractor).