I don't know how much you have found out about the heritage center, but I do not think it will be much use to us. The center is not open to the public, it is mostly for GM use; meetings and research. Supposedly a lot of space is devoted to a car museum, with some very rare GM vehicles in it. I get the idea most of the information stored there is about the inner and past workings of GM. I wonder if they have that piece of wallpaper that Durant supposedly tore off the Paris hotel wall that gave him the idea for the bowtie emblem?
