Elon Musk just disclosed on CNBC that last week, for the first time, Tesla Motors was “mildly cash-flow positive.” That’s only a couple weeks later than Musk’s earlier prediction that Tesla would become cash-flow positive by the end of November. The electric-car company is also paying back early its $465 million loan from the US Department of Energy, and the company is ramping up production to 200 cars per week.