I came here to say this as well. I admit it, I like to drive hard on occasion. But does the fact that I know the limits of my car's abilities make me a more dangerous driver? Maybe. But I could also cruise ever so gently through a red light, mow down pedestrians at 10 mph under the limit, or smoothly swing wide across the center line into oncoming traffic. Are we tracking things that make dangerous drivers, or tracking things that are easy to track?