I have often thought about the almost compulsive need I have to get in a sportscar or especially a motorcycle and just DRIVE. I have come to the conclusion that the drive is deep seated in my psyche, and may very well have roots in survival and fostered by evolutionary pressure. I think that the need for the feeling of movement and traveling may have roots in primative nomadic society. I will propose that the members that were more willing to travel may have had a survival advantage (and reproductive advantage) and therefore the urge to travel may be inborn in many of us. So, the compulsion to travel, and travel rapidly may have a deep instintual basis on or near the same magnitude as the instinct for sex, warmth, companionship, food gathering, etc. There may be a very real survival advantage imparted by this trait. So, in driving fast, I think we are satisfying an instinctual need that we have no control over. We are animals in our basic nature and I think this is a clear example of a primal drive displaced in the modern world. Or, maybe we just like to drive fast.