General Motors Suisse SA went into production 8 February 1936 (a Buick): see my page:
http://clubs.hemmings.com/clubsites/.../gmsuisse.html
This provides a copy of the February 1940 GENERAL MOTORS article on the phaetons.
http://clubs.hemmings.com/clubsites/.../GMSuisse2.jpg
Sorry, I should have made it clearer that when I said "Biel or Bienne" I meant Deutsch/Francais versions of what General Motors referred to as"Biel", except say in French language brochures.
Regular readers will notice that I also refer to GM Continental SA/BV as in "Antwerp", "Antwerpen" (Flemish/Flamand), or Anvers (Francais) and GM International as in "København" rather than "Copenhagen". GM also referred to the English version, generally as in "Copenhagen" and "Antwerp", but French/Flemish brochures refer to the respective local description and the Dutch GM brochures referred to the GM Coninental Rotterdam sales office.
I believe Ford used English for their Belgian plant, and presumably did so for the Amsterdam one. I apologise but I feel that I should personally attempt the local spelling wherever polite to do so.
As regards Danish/Dansk production of GMCs, this gives you some idea:
http://clubs.hemmings.com/clubsites/...penhagen1.html