I think it's almost certain the OEM is BMW.
http://en.tesla-club.eu/article/new...-germany-europe-elon-musk-ceo-tesla-motors-95
http://en.tesla-club.eu/article/new...-germany-europe-elon-musk-ceo-tesla-motors-95
"I expect that in the future we will build battery factory in Germany " - says E. Musk - CEO TESLA MOTORS
in interview to the German magazine Spiegel.
"The German automotive industry should be more active in the development of new batteries" says Musk, "it has the best conditions."
Recently, Daimler and Toyota sold their stakes of Tesla Motors company ,but that is not afraid of Musk: "Daimler and Toyota apparently just wanted to realize a profit." Cooperation with Daimler (Mercedes) will continue. We are negotiating with BMW in connection with new technology for batteries and charging stations as well as technologies for the production of carbon fiber, which is important to our engineering department.
by magazine Spiegel (abridged)