Tesla was founded in July 2003 by Martin Eberhard and Marc Tarpenning as Tesla Motors, the company's name is a tribute to inventor and electrical engineer Nikola Tesla. In February 2004, via a $6.5 million investment, Elon Musk became the largest shareholder of the company. He has served as CEO since 2008. According to Musk, the purpose of Tesla is to help expedite the move to sustainable transport and energy, obtained through electric vehicles and solar power.
Tesla began production of its first car model, the Roadster sports car, in 2009. This was followed by the Model S sedan in 2012, the Model X SUV in 2015, the Model 3 sedan in 2017, and the Model Y crossover in 2020. The Model 3 is the all-time best-selling plug-in electric car worldwide, and, in June 2021, became the first electric car to sell 1 million units globally. Tesla's global sales were 936,222 cars in 2021, an 87% increase over the previous year, and cumulative sales totaled 2.3 million cars at the end of 2021. In October 2021, Tesla's market capitalization reached $1 trillion, the sixth company to do so in U.S. history.