Musk said in May 2016 that he expected Tesla would produce 500,000 vehicles a year in Fremont by 2018, but the company has repeatedly fallen short of his manufacturing goals with the Model 3 sedan. Tesla built about 88,000 cars in the first half of this year.
With Musk and claims YMMV, and it pays to believe it only when and if he delivers. In this case there is no reason to believe it isn’t what he does best: PR.
[1] https://mashable.com/2016/06/24/tesla-factory-china-9-billio...
Edit: for the anti-Tesla downvoters -
"CEO Elon Musk has said that Tesla wouldn't require new funding in 2018, in either equity or debt. On a call with investors, in response a question from Morgan Stanley analyst Adam Jonas, Musk said that when it comes to raising new money, "I specifically don't want to." "
http://www.businessinsider.com/elon-musk-on-raising-more-mon...