How small are your parking lots.
I test sailed the Stigcher landyacht (about the same as the blokart) on a 100x50 meter (rather unevenly paved) parking lot.
I was really surprised at how well the kart handled the bumps and depressions. I expected to be all over the place but I wasn't.
A few lightpoles aren't a problem. It they are there ever 20 meters or less then it becomes annoying. Where I am we usually have a few on the side or 3 in the middle. Just set your course around them and you are fine.
You are right with respect to variations of martial arts you describe although a nice shapr kick to the upper leg muscle doesn't feel like it is very good for the muscle itself.
Still I did Judo along it for a long time and quite a few of my permanent injuries are from that sport. I have what is called "Judo toes".
I would have loved to try one when I was younger, or even now.
Do you have a rather flat dirt field nearby or a football pitch. That will all work although wet grass is very slippery.
Do you have an old windsurfer rig in your shed. If so then homebuilding the car to go with it is not particulary difficult at all.
Wouter
