Petition GM for all GM car info ???

[nwz28]

Someone at GM must care a little bit about this subject, because I contacted General Motors Media Archives last year and was able to get a copy of the original factory to dealer invioce for my '77 Z28 (sorry, not a supercar!), free of charge. I was told they currently only have access to some of 1977 and all of the 1978 to present invoices, and that they were stored on microfilm. Let's hope that the pre-1977 stuff still exists!