Jet Powered Go Kart

Still looking for a way to keep the bigger kids on your block from kicking your ass? Mow them down with a Jet Powered Go-Kart. It goes 100Km/H but no working brakes.
"This is also not the kind of gokart you can run up and down the road outside your house -- the neighbors would probably kill you and the cops would turn up in no-time.
It's getting a bit old and tired now, the engine has been welded back together quite a few times and is currently in need of further repairs (that I will make before selling). Odds are that you'll have to weld it up some more after a bit of running but that's simple enough if you've got half a clue or a mate with a MIG or TIG welder."
-CGP fo life-