The investigation of allegations Fiat Chrysler Automobiles cheated on diesel emissions is moving into high gear, the maker revealing he has received subpoenas from a variety of federal authorities.
The smallest of the Detroit automakers in January announced it was coming under investigation for allegedly rigging its diesel engines to pass tough U.S. emissions standards. FCA Chief Executive Sergio Marchionne rejected those charges during a news conference at the North American International Auto Show.
The FCA investigation ramps up just as Volkswagen begins to wrap up its own diesel emissions scandal. Court documents released this week revealed that the German maker has so far spend $2.9 billion to buy back vehicles sold in the U.S. using a rigged, 2.0-liter turbodiesel. VW set aside $10 billion for buybacks as part of a settlement with the government announced last July.