Elon Musk is having a moment. Tesla just delivered its first Model 3, the affordable model that he envisioned in his “secret” strategy some 11 years ago. He wanted to build a sports car, then build a more affordable car with zero emissions. He’s basically already there. The Model 3 has mostly rave reviews and a multiyear waiting list, which is quite a feat, even for an industry leader like Musk.