The General Motors streetcar conspiracy was a plot to get rid of streetcars (public transport) in cities across the United States in the 1940s and 1950s. A group of companies led by General Motors (GM) worked together to buy out the streetcar companies, tear up the tracks, and replace them with buses, which GM had a financial interest in. The plan was to make more money by replacing streetcars with buses, but it also made transportation more expensive for people who used the streetcars. This was a conspiracy because the companies hid their plans and cheated the public out of what should have been a fair and affordable transportation system.