I drive a copper in Houston. I saw another one here in houston about a year ago.
A dealer here in Houston had a ragged out, high mileage copper designo for sell and said it was sold to a lady in Atlanta so there must be one in Atlanta too!
They really are rare!
I had seen a SLK320 copper Designo for sell just after I bought mine about 2 years ago. I think the 320 models are even harder to find.
Wish there was a way to get production numbers from MB on the Limited Edition

per Designo packages produced and shipped to the USA.
SLKman