That's great that he enjoys being in the car. We have never had a dog that wanted to be in the car until now. They always were freaked out or barfed or whined the whole time. Ruby the dachshund is the worst. She, well, gets upset and .....passes gas. We can hardly stand to be in the car with her. I told her one day that I had seen dogs with their heads out the window of cars, and if she did the thing one more time her other end would be hanging out the window. PHEW!
Charlie loves to go bye bye. He doesn't do anything bad, ever.
I may not be perfect, but my dog loves me.