Driving behavior as a (metaphorical) vehicle to psychoanalysis

I've always considered people's driving behavior as indicative of their more primative tendencies. When I'm watching a person drive, to me it's as if he is saying, "If I myself weighed 2500 pounds and possessed the strength of a normally-sized human being many times over, this is how I would act." It turns out most people in Lubbock, if they commanded such body mass, would be pricks.