I'm a March 31st 2016 in line Model 3 reservation holder in Florida. I just got a call from the new showroom in Naples Florida offering to allow me to use a Model S for a day. That's it, they didn't mention anything about the model 3, just that they wanted to give me a chance to try the model S. Of course I jumped on it and said "sign me up". They just verified my name and contact info and said show up with ID and Insurance card. Boom.!!!