General Motors Dutch automaker Spyker, and emerged from a government-backed Chapter 11 reorganization. In 2010, the reorganized GM made an initial public offering that was one of the world's top five largest IPOs to date, and returned to profitability later that year. Based on global sales, General Motors is routinely among the world's largest automakers. Headquartered at the Renaissance Center in Detroit, GM employs approximately 180,000 people around the world. In 2009, General Motors sold 6.5 million cars and trucks globally; in 2010, it sold 8.39 million. , Mary Barra is the chief executive officer (CEO) and chairman of the board and
General Motors would begin testing self-driving vehicles on public roads in Michigan, after Gov. Rick Snyder signed a package of bills legalizing the operation of autonomous vehicles. In March 2016, General Motors bought Cruise Automation, a San Francisco self-driving vehicle start-up, to develop self-driving cars that could be used in ride-sharing fleets. In October 2017, General Motors acquired Strobe, a solid state LIDAR company. Strobe's prototypes produce brief "chirps" of frequency-modulated (FM) laser light, where the frequency within each chirp varies linearly. Measuring the phase and frequency of the echoing chirp allows the system to directly measure both the distance and the