I heard about this on Facebook, not sure who they are, I'm guessing a 5th Gen club,but... they are looking for all Camaros for a Guinness book of world records in hope to get this event into their book. 2015 All Camaro Parade Info FaceBook link of the event found the poster for it.
The group is a new group manly on Facebook right now hoping to take it further and to become a club open to all Gen Camaros