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In addition to announcing that General Motors plans to have invest heavily on research of driverless vehicle technology in the coming decade, GM CEO Rick Wagoner will also debut a concept vehicle tomorrow at the Consumer Electronics Show in Las Vegas called the Cadillac Provoq. While very few details were released, GM says that the Provoq will be "free from petroleum fuel and emissions." That means the Provoq could be either an all-electric vehicle or possibly another variant of the automaker's