I am scheduled in early June to test drive a Model S in Vancouver. Very excited and looking forward to it. My wife and 3.5 year old daughter will be with me. Will Tesla allow me to install our car seat temporarily in the back so my daughter can come along on the drive? We also of course need to make sure the seat fits well. We have a bath towel we use under the seat so we can spread that out first to avoid damaging the Tesla's seat.