There is an art, or rather, a knack to the Wall of Champions. The knack lies in learning how to drive yourself at the wall and miss. Pick a nice day, and try it
The first part is easy. All it requires is simply the ability to drive yourself forward with all your speed, and the willingness not to mind that it's going to hurt
That is, it's going to hurt if you fail to miss the wall. Most people fail to miss the wall, and if they are really trying properly, the likelihood is that they will fail to miss it fairly hard.
Clearly, it is the second part, the missing, which presents the difficulties.
One problem is that you have to miss the wall accidentally. It's no good deliberately intending to miss the wall because you won't. You have to have your attention suddenly distracted by something else when you're halfway there, so that you are no longer thinking about driving, or about the wall, or about how much it's going to hurt if you fail to miss it.
It is notoriously difficult to prize your attention away from these three things during the split second you have at your disposal. Hence most people's failure, and their eventual disillusionment with this exhilarating and spectacular sport.
If, however, you are lucky enough to have your attention momentarily distracted at the crucial moment by, say, a gorgeous pair of legs (tentacles, pseudopodia, according to phyllum and/or personal inclination) or a bomb going off in your vicinty, or by suddenly spotting an extremely rare species of beetle crawling along a nearby twig, then in your astonishment you will miss the wall completely and remain driving just a few inches away from it in what might seem to be a slightly foolish manner
This is a moment for superb and delicate concentration. Bob and float, float and bob. Ignore all consideration of your own speed simply let yourself drive faster & faster. Do not listen to what anybody says to you at this point because they are unlikely to say anything helpful. They are most likely to say something along the lines of "Good God, you can't possibly have missed that wall!" It is vitally important not to believe them or they will suddenly be right.
Drive faster & faster. Try a few swerves, gentle ones at first, then drift along the tarmac breathing regularly
DO NOT WAVE AT ANYBODY.
When you have done this a few times you will find the moment of distraction rapidly easier and easier to achieve.
You will then learn all sorts of things about how to control your car, your speed, your maneuverability, and the trick usually lies in not thinking too hard about whatever you want to do, but just allowing it to happen as if it were going to anyway.