A few members have been asking about over steer, and what causes it. I found a great example of a particular type of over steer, called snap over steer in some of my track footage.

Over steer is generally caused by the driver applying more steering input than the rear axle of the car can handle in a particular situation. Rear of the car looses grip before the front, which induces the rear to come around.

Snap over-steer is caused by an over correction to initial over steer, or by holding the correction too long. Remember CPR from driver's ed? Correct, pause, recover. But don't pause for too long, or this happens.