Elon Musk says Tesla drivers can now subscribe to ‘Full Self-Driving.’ But he isn’t sure they should.

Meanwhile, he announced Monday could be his final regular appearance on the quarterly earnings calls, where he offers colorful commentary on company matters and even veers into spontaneous rants. Last year, he used the forum to take aim at government-mandated shelter-in-place orders, urging officials to give people back their “freedom” in a profanity-laced tirade, citing shutdowns as a financial risk for his company.