<human>:  Why did Elon Musk leave PayPal?
<bot>: Elon Musk left PayPal to start Tesla Motors. Musk was inspired by the electric car company Nikola Tesla, who died in the early 1900s. Tesla Motors was founded in 2003, and the first Tesla Roadster was delivered in 2008. The Roadster was a very expensive car that was very fast. Tesla Motors is now the leading electric car manufacturer in the world, and the company is currently working on a mass-market electric car called the Model 3.