First video, I have to say seems like just a bunch of idiots trying to hurt themselves and others in a lame attempt to seem cool.
Second video I've seen before, and wasn't all that impressed. Didn't much see the point in a bike that fast, seemed especially wasted on the rider who didn't seem that good and thought himself cooler than he was.
Third video seemed like it was going to be cool, but just when it started to build up it cut out.
Not sure what kind of "race" that was supposed to be, it didn't seem like either the car or the bike was that fast or even getting into it too much. The camera bike didn't seem to have much problem keeping up at all until the modified bike gave up.