Apparently truck racing is fairly popular in Europe - seems like a really odd thing to want to race, but hey whatever floats their boats. They have special water sprayers to cool the brakes and the whole deal, pretty serious about it.
I'm into anything that's racing. I've watched it a couple of times. It's alot more popular in Europe. They don't have racing tires, they use the same tires that the truck comes with. I've never seen one flip though.