If you search Ebay for this item
06 Chrysler Crossfire Center Console Cover Assembly 1706800050
you will see pictures of what they say is a center console from a Crossfire.
One of the pictures shows the bottom with the M/B symbol and part number of 170 680 00 50
So it looks like the bottom part of the console was a Mercedes part.

The Roadsters have a locking center console. Could that be where the pneumatic locking assembly needs to go ? I know we already said it's not just Roadsters, but maybe someone swapped consoles, or on the assembly line they interchanged them some ?