Musk led the Series A round of investment in Tesla Motors and became the company's chairman.

Musk took over as CEO and product architect of Tesla, leading the company through critical financial and operational challenges.

Tesla began delivering the Roadster, the first mass production all-electric car using lithium-ion battery cells.

Tesla introduced the Model S sedan, which became a flagship model for the company.

Tesla released the Model 3, a mass-market sedan that became the all-time bestselling plug-in electric car worldwide.