It doesn't take a hero to drive a 911 to the limit on public roads. The problem is that for most of us, and I include myself, the limits of the car are way higher than the limits of the driver .

From my personal experience I found that driving a Porsche on a race-track is immensely enriching for your driving skills. In addition it makes you a much smarter driver on public roads. As they say In order to know your limits you have to go beyond them ! but it's advisable to do this off public roads.