Forbes published an article last week hinting at the fact that BMW might be interested to purchase a stake in Tesla as well. The two companies have been in talks recently and visited each other to discuss future collaborations and the state of electric cars.

Earlier this year, Tesla said it would allow competitor car companies to share its patents, in the hope this would stimulate the overall market for electric cars.

Tesla could be interested in partnering with BMW to gain access to the carbon fiber production and technology, an essential lightweight material in construction of light electric cars. In exchange, BMW would benefit from Tesla’s battery technology and its future production at the Nevada plant.

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While these are simply rumors and speculations at the time, things could change in the future, considering how much BMW and Tesla could benefit from each other, at least for now when they don’t compete head-to-head in the electric car segment.