Bulldozer was a monster truck owned by Feld. El Toro Loco was inspired by Bulldozer.
Many different chassis were used. One was also used as Hotwheels, one was actually El Toro Loco, one became Maximum Destruction, another became one of the current chassis for El Toro Loco, and the final one was driven buy Guy Wood,and was Tropical Thunder in Australia.
The truck is on hiatus right now.