C'mon, now. We've all seen it a time or two. A dog hanging its head out the car window with a look of pure ecstasy on its face. There is no better place for a dog to enjoy its time than with the wind blowing straight into its face, ears flapping, the world flying by. Bikers get it. They know exactly why a dog loves it so much. Minus the ears flapping and all the slobber (we hope!).