Yeah, in a car 20 mph is torture! But, if you were to grab hold of a car from the outside, and try to RUN with it at 20 mph, you wouldn't make it to far before you were being dragged! <img src="http://www.catsailor.com/forums/images/graemlins/blush.gif" alt="" />

I can't imagine what it's like on one of the big cats (120') going 40 knots down an 80 foot wave face in the southern ocean!! Must be a real wild ride.