Gimmicking the testing

Since 2009 Volkswagen has been deceitful with regard to its diesel vehicles. It developed software to control emissions. When the car is on the road, there is little control over emissions. When the car is being tested for emissions, the software turns on the full emissions control system. The company has been ordered to recall and fix about 500,000 of its cars, both VW and Audi. There will likely be penalties.