In 2003-2004, Martin Eberhard used AC Propulsion's tZero electric roadster to demonstrate the vehicle's performance to Silicon Valley investors, including a pivotal demo at Buck's of Woodside restaurant. Google cofounders Sergey Brin and Larry Page connected Eberhard with Elon Musk, who owned high-performance sports cars and became interested in the tZero after receiving an email from Tom Gage in January 2004, setting the stage for Musk's involvement with Tesla.