Actually it's not that uncommon. A client of mine gets all the drive trains pulled for warranty purposes from Ford, GM and Chrysler and they have to destroy (part out) these items. They also get parts that are pulled off the assembly line when there is a change that requires new parts. An example of this is while I was there they got two semi loads of 1 ton GM rear truck axles. They pulled them off the assembly line because of a change in the anti-lock braking issue. I asked if I could buy one, they said yes but they had to pull it apart and then they would ship it to me in parts and I could reassemble it. They also had a warehouse that had a GM hydrogen motor, and several GM big blocks that were developed for the marine industry. Lots of really cool stuff. I walked around that warehouse for an hour looking at all this stuff