We keep talking about getting one of those basket things that dogs can be seatbelted in, but I keep wondering about whiplash.
We keep Penny in a padded carrier that is made to go on a Airplane and fit under the seat. It has Velcro straps that we use to attach the carrier to the seat belt in the car. If we have an accident the carrier will not go flying and Penny's whole body will be slammed into the padded walls of the carrier instead of her body parts jerking in a doggy seat belt.
So, even though I think Penny would LOVE to ride outside of the carrier, I have had enough accidents in the past to know that they happen and sometimes you don't have any way to avoid them. It doesn't always happen to someone else, in other words.