Go to the MazdaUSA
webpage and "locate dealers" for your zip code. That will give you phone numbers to call and check. Not sure I have heard of anyone that is allowing drives. None of the RX-8s so far have been the designated demo. Browns Alexandria does not have any at the moment. My car is the last one they expect to receive until the end of month or August. It's still sitting at the port for no confirmed reason.
Maybe today will bring good news!