Got back from the local Mercedes dealership a few hours ago.

I took my 83 300CD and 02 Acura for a trade in on a E320.
They couldn't give me a price for the CD. The manager claimed that it's a collector's car and he does not know the value and he has to research it and call me back. They also told me that they will pay me $2000 below the trade in value for the Acura. Ouch, I guess I should put them in the local paper and see what I can get for them.