What do you mean by "with the company"? I have never been an employee of Tesla, but the two people who founded the company, Martin Eberhard and Marc Tarpenning, were coworkers of mine at Packet Design before they left to found Tesla. I drove an EV-1 for five years and gave Martin a ride in mine (maybe Marc, too, I don't recall) before I had to return it at the end of the lease. Martin and I talked several times about EVs while at Packet Design and it was then that he developed his spreadsheet exploring energy choices for transportation considering efficiency and environmental factors from first principles. The logical conclusion was to start an EV company. I visited Tesla periodically over its first few years, beginning from when it was three people (Martin, Marc and Ian Wright) in a small office near downtown Menlo Park. Each time there was something new and intriguing to see: battery packaging, motor test stand, ... Having lost the EV-1, you can imagine that my hunger for the Tesla Roadster was intense.