Normally competitive jujitsu takes place in a gym on a mat or an otherwise fairly open space. But car jitsu contests take place entirely within the confines of a car. One competitor must compel the other to submit. There's a world-level championship program in addition to local events.
This is a great idea for practical training in the martial arts. The karate that I study practices self-defense techniques for specific scenarios (e.g. while seated, from behind, or when lying down). But not for while in a car.
This combat sport could be further improved by placing it inside a self-driving car in motion to add to the chaotic ambiance.
-via Born in Space
This just looks like an excuse to grapple each other for fun and gratification.
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