How to Escape from a Sinking Car

Lifehacker has a post with videos from Rick Mercer and the Mythbusters to teach you how to escape from a car sinking in water.  There's nothing really earth shattering in there but I did learn that if you have to kick it is better to kick near the hinge side of the door windows.  Also the demonstration of the centre punch in the Rick Mercer video was pretty impressive.