A driver who considers him or herself skilled is not in fact skilled. A driver such as this is only skilled insofar as that he or she can operate his or her vehicle at a high rate of speed in a straight line, and not much else. This driver very likely knows next to nothing about the numerous dynamics that go into a car operating at high speeds; weight transfer, contact patches, center of gravity, and centrifugal force. None of this is taught at drivers ed, and requires an above average level of interest and passion for driving rather than a casual admiration most public road drivers have.
A truly skilled driver is one who never assumes his or her skill or for unrealistic handling capabilities of his or her given car, and thus always drives within his or her skill set, and never above it.