The company will also stop selling certain Audi and Volkswagen vehicles with diesel engines in the US. The possible fine and recalls are not the only things spooking the markets. Criminal prosecution, private class-action lawsuits, and forgone sales due to hostile regulation from angry American officials will loom over the company for some time to come. And having just been through a bruising boardroom battle that saw Winterkorn oust longtime VW chairman Ferdinand Piëch, the company could be in for more management upheaval. With spectacularly bad timing for the CEO, Winterkorn's contract renewal is up for a vote by the board at the end of this week.