Have to say I have never heard of them...
A crappy Google translate shows:
History
Establishing the VM exclusive automotive GmbH in November 1988.
In 1989, the company "VM" will be the official vehicle manufacturer
registered with its own world manufacturer number when Kraftfahrtbundesamt.
During the first years, we dealt exclusively with the design,
manufacture and distribution of the two-seat roadster Seventy Seven-
in kit form and fully assembled vehicles. The vehicle sets
were compiled in the parts warehouse and on a European dealer network the
supplied customers. To this day, so over 1000 vehicles and kits were in our
manufactured home.
Also complete vehicle were prototypes and various motor vehicle on behalf of customers designed, developed and assembled accessories.
since 2010 no "registrations" for Seventy Seven are from VM more
done. In this area, we continue to ensure optimum spare parts
supply as well as a detailed vehicle service . Due to the very special demands in our metal range we expanded our metal production in an extensive exclusive Metal, with integral tube bending and rolling department. past few years we have been working regularly for television productions, where we among other things, to realize custom-made for the Brain Pool productions. This includes several games constructions of "Schlag den Raab". Also made us for the Euro Vision Song Contest 2011 and 2012, extensive lighting and transport equipment. Also in apparatus we made in the past few years some very special designs for the field of metal catalyst Hersel Lung. We are a manageable special team with many years of know-how, which always new Herausfordeungen in various areas studied.
Not sure that helps much...
The VM77 does look interesting though.

And facebook page here:
VMGmbH
Le Presidente