My dog is in the back seat in her car carrier. She's a small dog and jumps around a lot. We don't need any drivers distracted by a Jack Russell jumping out of nowhere.
This situation kind of made me think the car carrier is the best place for small dogs at least. My friend was helping a friend out last week. Her friend is in an assisted living place after she broke her hip. She has a small dog and asked if my friend would bring it to her to visit. It is a Yorkie.
She had the dog in the back seat. All of a sudden the car got really windy. The dog had somehow hit the button to lower the window and the window was all the way open. That really scared me! It's so easy for a dog to jump out before you'd have time to think.