My salesman I talk to regularly keeps telling me June also. He says they might have one as early as May. Last time I talked to him he also said at the last meeting he heard it was going to be more limited then he thought.
My dealer and dealer rep has always said the first cars for customers would not arrive until June/July. They did say that a "tester" or "showroom car" would be available in May. But they have said nothing about cost yet.
Spoke to my dealer yesterday, he said that there would be NO tester or showroom car and the car would not be available for lease or test-drive. He did say that end of may/very early June was the date?! Maybe there will be different things for different areas?