The Mountain View-based company is shutting down after raising $220 million. : Ghost Autonomy was headquartered at 900 Villa St. in Mountain View, Calif. The self-driving car software startup has shut down. Ghost Autonomy, a Mountain View-based startup that built autonomous driving software, announced on Wednesday that it has shut down. The closure is a dramatic collapse for a company that had raised $220 million in investment as it tried to build software that could turn future cars into self-driving vehicles.