Hey everybody, I'm looking for a dog hammock for my two small chiuaua terrier mixes to ride in the back of my next Taco. There are a lot to choose from so I'm wondering if anybody has any expertise in the functionality of them. My dogs like to look out the window around town, but for the long hauls are pretty laid back in the back seat. Also, are the door panels durable for dogs nails as them step up to look out the window? Some of the hammocks have side pieces that come up too, but I don't like the look of those. The first two Pics are my dogs, the rest are some of the hammocks. Thanks for any input.