Musk cautioned that the merger is not a certainty, since it needs approval from 50% of all Tesla shares, a high hurdle.
"I think some people out there assume that a SpaceX and Tesla merger is a certainty, and I think that would be overstating it," he said. Musk added, "At the end of the day, the shareholders have to be supportive of this, and particularly on the Tesla side, we will need a 50% vote of all shares, not just those who vote, but of all shareholders. And that's quite a high hurdle to try to achieve."