General Motors Co (GM.N) and its law firm need not turn over privileged documents to drivers hoping to show that the automaker intended to commit a crime or fraud by concealing defective ignition switches in their vehicles, a Manhattan federal judge ruled on Wednesday. Despite finding “probable cause” to believe GM committed a crime or fraud by hiding the defect from regulators and the public, U.S. District Judge Jesse Furman found no showing that the automaker and King & Spalding produced the documents with an intent to further such misconduct.