Mythbusters - JATO 3 Rocket Car Results https://youtu.be/cHUsGFGhfmk

Ron Patrick's beetle is more interesting. https://www.ronpatrickstuff.com (https://news.ycombinator.com/item?id=37778531 - 139 comments) ... He was trying to sell it a couple of years ago ( https://www.motortrend.com/news/jet-powered-vw-new-beetle-fo... and it has some photos that no longer load on his original site)