The information age has not only allowed a lot of information to be accessible anywhere anytime but people who share the same interests, that may never have met before can now meet and share ideas online. This person built his own go-kart, moreover he put the instructions online so any do it yourselfer can also go online and look at his designs and build the exact same kart! The information age has allowed for an extreme amount of growth.
Build a go-kart using readily available parts and a lawn mower engine. This is a very simple design built with junk yard scavenged parts mostly. Remember web uilt this as kids, the dimensions would alter somewhat for bigger riders.