Could someone post the info on the sender (return address) on these ZL1 certificates. Who is sending them, I'd like to contact that department at GM and let them know just how important these things are to ZL1 owners. Plus I'm moving in six months or so and how do I make sure GM has my new address. I'll tell them that the Camaro5 site has a category just for ZL1 owners who have received their certificates. Might as well tell them about the on-line ZL1 Registry too! I want them to know the significance and depth of what this means to us owners. Let them know owners are framing these things and hanging them in their man caves or on their office wall. The ZL1 is not just a car... The owners passion goes much deeper, and I'd like GM to be fully aware of how most of us feel. Thank you in advance for posting the return address.