Musk was a founding investor and Chairman of the company. The company was incorporated shortly before that. He also oversaw design of the Roadster. Before Musk'

Musk was a founding investor and Chairman of the company. The company was incorporated shortly before that. He also oversaw design of the Roadster. Before Musk's involvement it consisted of a handful of people and some plans to build a prototype adapted from an existing vehicle, the AC Propulsion T Zero. The Roadster project didn't start until after Musk's involvement and he participated in design discussions from day 1.