Tesla Motors designs, builds, and sells the Model S electric luxury sedan. A start-up in 2003, Tesla went public in 2013. Initially, it produced the all-electric Tesla Roadster sports car, but stopped selling it in 2011. The Model S debuted in 2009. Upcoming models will be the 7-seat Model X SUV, which debuts this year, and Model 3, slated to sell for $35,000 when it launches in 2017. Founder Elon Musk named the carmaker after Nikola Tesla, physicist and electrical engineer.