wow does this guy look like he's having a blast! (thanks Mike!)

Maddox's newest creation is a triple valveless jet kart he calls “The Beast." It’s powered by injected propane and diesel and the builder has run it up to 90 miles per hour.

https://www.thedrive.com/news/44366/meet-the-joyful-man-behind-this-incredible-jet-engine-go-kart-video  for the video