How VW's 3-liter diesel cheat worked; fate unclear for V-6 TDI vehicles

After last month's announcement of a plan that could pull hundreds of thousands of illegally polluting VW Group diesel cars off the road, one out of every six TDI owners is still in limbo. That's because the plan covers only the 482,000 cars equipped with Volkswagen's 2.0-liter 4-cylinder turbodiesel engine. The future remains hazy for nearly... How VW's 3-liter diesel cheat worked; fate unclear for V-6 TDI vehicles