I found this M Coupe for sale in Germany on autocenter-querum.de. They have listed it as a “BMW Z3 M CoupÃ© Hamann Le Mans Limited Edition”. I can’t find any further details about the Coupe, so it may or may not have been designed/built by Hamann, but it does have a “special” badge on the glove box indicating that it is Hamann Limited Edition Serial Number 004.
First off, let me just say that I’m skeptical of the details about this Coupe. At the same time, it would be awesome if it was all accurate.