May 6th comes from three dealer in three different states telling me that their GM Rep's told all three of them, the "GM Big Reveal" will be on the first Wed. in May (May 6th).
Dealers V6, along with the first "sold order" V8!!! One line at the plant builds V6's (dealers floor model = all V6's), the other line builds V8's (first sold orders = SRE/all V8's).