This is SO hard, all cause of bloody puppy!!!!!!!!!!
Puppy is staying and so might the Eos !
We have a border collie and she takes pride of place on the back seat. A harness & seatbelt clip provide the assurances that she doesn't scarper when the roof is down and she loves it.
My only gripe is that she dribbles a lot, and I have to keep sponging down the Nappa.
The small rear window is also perfect for dogs when the roof is up.