My dad used to race go-karts when he was in the military. The Air Force to be specific. They would set off sections of the ramps to set up a course. I can't really remember how often he used to race, but I do remember we had a station wagon and he would back up to the course with it and us kids would watch from the back of the station wagon. I also remember them running twin McCulloch chainsaw engines on those carts. He also raced go-karts when we were stationed in Vienna, Austria. They had an amusement park there that they set off space for a course. I still have a box full of all all of his old trophies..