 Before working at Google, Thrun and 15 engineers, including Dmitri Dolgov, Anthony Levandowski, and Mike Montemerlo worked together on a digital mapping technology project for SAIL called VueTool.Many of the team members had met at the 2005 DARPA Grand Challenge where both Thrun and Levandowski had teams competing in the robotic, self-driving car challenge.In 2007, Google acquihired the entire VueTool team to help advance Google’s Street View technology.