Tesla. It is clear that world is going towards renewables. It is also clear that electric vehicle is here to stay. Even if there is an alternative out there that meets the renewable energy needs, it will take more than a decade for it to fully commercialize so Tesla has its place. I think that the giga factories and solar city can be huge businesses. Tesla's truck with its auto-pilot (even if it is good enough to drive on freeways) can be a huge cost saver for transportation companies.