Arndt Ellinghorst.

“We believe collaboration between BMW i and Tesla could prove a powerful combination, with BMW lending its expertise in, as well as potentially the supply of, carbon fibre technology and Tesla in turn assisting BMW with electric powertrain development and supporting infrastructure.”

Arndt Ellinghorst, analyst with International Strategy and Investment (ISI), speculates on the recent talks between Tesla and BMW managers which came after the Californian car maker announced to publish all its patents.
forbes.com