Who were the Companies involved in ditching the streetcars?

Question: Who were the Companies involved in ditching the streetcars!?

Where was the trial held!? And in what year!?Www@QuestionHome@Com

Best Answer - Chosen by Asker:

General Motors is usually the villain in the "bustitution" plots!. In 1947 the Department of Justice sued National City Lines and its suppliers (GM though its subsidiary Yellow Bus and Coach, Firestone) for antitrust violations!. The suit was settled nineteen years later!. Suit was originally filed in Chicago!.Www@QuestionHome@Com