Tesla has an in-house construction unit building out its factories. This enables a radically new and optimized manufacturing process. Historical analogy: Amazon built its own distribution centers to reinvent e -commerce logistics.

This is a very new technology. It could be decades before it is developed enough to be put into a car. The high levels of cobalt could also be a huge issue. Not only is cobalt more than twice as expensive as any other battery metal, but its mining is environmentally and humanely dubious. Many companies, including Tesla, want to have cobalt-free bat... See more

In Tesla’s 2016 annual shareholders meeting, Musk said:“We realized that the true problem, the true difficulty, and where the greatest potential is — is building the machine that makes the machine. In other words, it’s building the factory. I’m really thinking of the factory like a product.”