I don't think there is a way to get production numbers (you might get some help from Frank at GM historical services) but if you go do any GM dealer and get a decent service advisor, he can run your VIN on GMVIS (GM Vehicle Information System) and he can at least get you a build sheet as well as a warranty history printout. This will give you all the options, build date, claim history, plant that built it, selling dealer etc.
  Todd