Cars drive near Frankfurt Airport on Tuesday in Germany. Much of Germany's autobahn system has no speed limit, and a proposal to cap speeds at about 80 mph has sparked controversy. Silas Stein/picture alliance via Getty Image hide caption
Volkswagen emissions scandal
Audi's chief executive, Rupert Stadler, pictured at the Annual Media Conference of Volkswagen AG last month, was arrested Monday. Ulrich Baumgarten/U. Baumgarten via Getty Images hide caption
Reacquired Volkswagen and Audi diesel cars sit in a desert graveyard near Victorville, Calif., on Wednesday. Volkswagen AG has paid more than $7.4 billion to buy back about 350,000 vehicles, the automaker said in a recent court filing. Lucy Nicholson/Reuters hide caption
Volkswagen executive Oliver Schmidt was sentenced to 7 years in prison for conspiring to evade U.S. clean air laws. AP hide caption
The GMC Duramax Diesel 6.6L V-8 Turbo engine, seen here during the 2011 New York International Auto Show, is at the center of a new lawsuit over emissions. Mary Altaffer/AP hide caption
Owners of vehicles with larger VW diesel engines that have emissions-cheating software could get their cars fixed or bought back, the company says. Here, a man walks by an Audi diesel at company meetings last summer. Alexander Koerner/Getty Images hide caption
The 2014 Jeep Grand Cherokee is among the vehicles that allegedly have emissions-altering software. AP hide caption
Volkswagen has agreed to plead guilty to three criminal felony counts as part of the settlement announced Wednesday by the Justice Department. Damian Dovarganes/AP hide caption
VW Chairman Hans Dieter Pötsch, left, seen here with his predecessor Martin Winterkorn, has been at Volkswagen since 2003. ullstein bild/ullstein bild via Getty Images hide caption
A Volkswagen Touareg diesel is seen being tested at a federal facility in Michigan last year. Volkswagen has reached a tentative deal with its U.S. dealers to compensate them for plummeting sales as a result of the company's emissions cheating scandal. Carlos Osorio/AP hide caption
Volkswagen used six different "defeat devices" to purposefully skirt U.S. emissions rules, new lawsuits say. Here, VW cars are seen in a delivery tower in Wolfsburg, Germany, earlier this year. Markus Schreiber/AP hide caption
Former FBI Director Robert Mueller, right, arrives for a court hearing in San Francisco Thursday. Mueller has been overseeing talks about a settlement between Volkswagen, the U.S. government, and the car company's customers. Jeff Chiu/AP hide caption
Volkswagen CEO Matthias Mueller speaks to the media Sunday in Detroit, apologizing for the scandal that has plunged the German auto giant into crisis. Paul Sancya/AP hide caption
John Swanton of the California Air Resources Board, explaining how a 2013 Volkswagen with a diesel engine is evaluated at an emissions test lab. The U.S. has filed a civil complaint against Volkswagen over emissions cheating in its diesel cars. Nick Ut/AP hide caption
Volkswagen Chairman Hans Dieter Pötsch (left) and CEO Matthias Müller attend a news conference Thursday in Wolfsburg, Germany, to announce the latest update in the company's handling of its emissions scandal. Carsten Koall/Getty Images hide caption
The Volkswagen logo is seen at the main entrance gate of the Volkswagen group on Friday in Wolfsburg, Germany. That day, CEO Matthias Mueller announced the company would be cutting expenditures by more than $1 billion. Alexander Koerner/Getty Images hide caption
A car departs from Volkswagen's factory and company headquarters in Wolfsburg, Germany. The company says the fallout from its diesel emissions scandal is still becoming clear, as it reports a large quarterly loss. Sean Gallup/Getty Images hide caption
Kim Johnson of Ridgefield, Conn., says her 2014 Jetta lost more than $1,000 in value because, once fixed, it will no longer get the advertised mileage. Charles Lane/WSHU hide caption
Emissions Scandal Is Hurting VW Owners Trying To Resell
It's Not Just VW: A Robust Market For Reprogramming Vehicles
Then-CEO Martin Winterkorn poses at Volkswagen's annual press conference in Wolfsburg, Germany, in 2012. He resigned his post last month following revelations that VW cheated on emissions tests. Michael Sohn/AP hide caption
Volkswagen Group of America President and CEO Michael Horn testifies before the House Committee on Energy and Commerce Subcommittee on Oversight and Investigations on the Volkswagen emissions cheating scandal Thursday. Mandel Ngan/AFP/Getty Images hide caption
Volkswagen board members Wolfgang Porsche (from left), Berthold Huber and Stephan Weil attend a news conference to announce Martin Winterkorn's decision to resign as Volkswagen CEO on Sept. 23, in Wolfsburg, Germany. Alexander Koerner/Getty Images hide caption
David Whitcomb of Waynesboro, Va., says he paid a premium for the diesel engine on his 2015 Passat TDI because he thought it would mean fewer emissions. Courtesy of David Whitcomb hide caption