General Motors streetcar conspiracy

The General Motors streetcar conspiracy refers to convictions of General Motors (GM) and other companies for monopolizing the sale of buses and supplies to National City Lines and its subsidiaries, and to allegations that this was part of a deliberate plot to purchase and dismantle streetcar systems in many cities in the United States as an attempt to monopolize surface transportation, and to urban legends and other folklore inspired by these events.

Between 1938 and 1950, National City Lines and its subsidiaries, American City Lines and Pacific City Lines—with investment from GM, Firestone Tire, Standard Oil of California through a subsidiary, Federal Engineering, Phillips Petroleum, and Mack Trucks—gained control of additional transit systems in about 25 cities. Systems included St. Louis, Baltimore, Los Angeles, and Oakland. NCL often converted streetcars to bus operations in that period, although electric traction was preserved or expanded in some locations. Other systems, such as San Diego's, were converted by outgrowths of the City Lines. Most companies involved were convicted in 1949 of conspiracy to monopolize interstate commerce in the sale of buses, fuel, and supplies to NCL subsidiaries, but were acquitted of conspiring to monopolize the transit industry.

The story as an urban legend has been written about by Martha Bianco, Scott Bottles, Sy Adler, Jonathan Richmond and Robert Post. It has been explored several times in print, film and other media, notably in Who Framed Roger Rabbit, Taken for a Ride, Internal Combustion, and The End of Suburbia.

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