If you ignore the first two paragraphs of letting you know he's, like such a, well, totally amazing, hella cool bro, with a big (probably the biggest) Johnson EVER, whaaaaat!!!! It's a good read.
Interesting bit about karts, throwing them around is dead easy and great fun, but once you make that leap up of adding 900kg to a kart I find it all becomes just a bit more scary. Never done it in a car I don't mind stuffing though, perhaps that's the key.