- The simply just love the feel of the air dashing against their faces. They think its fun and quite exciting. Honestly i feel the same way. Wait, its really fun and exciting to stick your head out! just be sure that when your body is pulled back in the vehicle, your head is still on it.
- They love to see the flash of images as you drive by. When dogs stick their heads out the car they are also looking at those quick image flash as the vehicle drives by. Just another fun little thing for them to do.
- They just can't stand the the glass in front of them. Your windscreen is like a contact lens to your dog and he would prefer to see things as they are than to keep on looking through those big contact lens. Especially if you windscreen is a bit dirty, your dog would definitely want to stick his head out as soon as he gets the chance.
- He thinks that he is running and still catching that ball. Its a pity he doesn't know that he brought that ball back to you 2 hours ago. Your dog will stick his head out thinking he is still chasing the ball you through. In his mind he may be doing a never ending ball chase, but he doesn't mind, he is enjoying it and would do it all day.
- He is looking out for running postmen. Somehow in his mind he believes that the postman ran off and is still running so he probably figure that since the car is fast, it will catch the running postman where he can then maul his mail bag.