3 top takeaways from Tesla's latest earnings

Tesla hit a big milestone Wednesday as it said it's finally turned a quarterly profit after a three-year drought. Investors were buoyed by the news, but chief executive Elon Musk had a few other thoughts to share that shouldn't go unmentioned. Here are a few highlights. So many people have signed up early for Tesla's mainstream electric car, the Model 3, that the company has enough work to fill a whole year of production already. "We're sold out for the first 12 months of production," he told investors on a conference call.