The producer requested to borrow Levandowski's Ghost Rider, the autonomous two-wheeled motocycle Levandowski's Berkeley team had built for the 2004 DARPA Grand Challenge. However, in 2007, Levandowski had donated the self-driving bike to the Smithsonian. Since the motorcycle was not available, Levandowski offered to retrofit a Toyota Prius as a self-driving pizza delivery car for the show. As a Google employee, Levandowski asked Larry Page and Sebastian Thrun, if Google was interested in participating in the show. Both declined, citing liability issues. However, they authorized Levandowski to move forward with building the car, given it was clear that it was not associated with Google. Within weeks Levandowski founded Anthony's Robots so that he and his team could modify a Toyota Prius without reference to Google. He retrofitted the car with light detection and ranging technology (LiDAR), sensors, cameras, and software from his company 510 Systems and named the prototype, the Pribot. The Pribot was the first self-driving car to drive on public roads. The episode featuring Pribot driving itself and the pizza across the San Francisco Bay Bridge under police escort aired in December 2008. After the broad press coverage of the Pribot, Levandowski and Thrun were greenlit to launch Google's self-driving car program in January 2009. In 2011, Google quietly acquired Levandowski's technology - the nucleus of Google's self-driving car project, via his two companies, 510 Systems, co-founded alongside Pierre-Yves Droz and Andrew Schultz, and Anthony's Robots for an estimated $20 million. Project Chauffeur Project Chauffeur ran for almost two years undetected, road testing with seven vehicles before the New York Times revealed their existence on October 9, 2010. Google announced its self-driving car initiative via its blog later the same day. Starting in 2010, lawmakers in various states expressed concerns over how to regulate the emerging technology. Nevada passed a law in June 2011 concerning the operation of autonomous cars in Nevada, which went into effect on March 1, 2012. Google had been lobbying for driverless car laws. A Toyota Prius modified with Google's experimental driverless technology was licensed by the Nevada Department of Motor Vehicles (DMV) in May 2012. The car was "driven" by Chris Urmson with Anthony Levandowski in the passengers seat. This was the first license issued in the United States for a self-driven car. In late May 2014, Google revealed a new prototype of its driverless car, which had no steering wheel, gas pedal,