This just in;
http://www.engadget.com/2015/11/02/epa-discovers-defeat-device-in-more-vw-tdi-engines/
In a sternly worded letter, the United States Environmental Protection Agency has issued a new set of allegations against Volkswagen claiming that so-called emissions defeat software has been found in the company’s 3.0-liter TDI V6 diesel engines. This is a completely different engine than the 2.0 TDI that has already been identified as an emissions cheater. In addition to VW, the EPA has included Audi and Porsche in this notification, as the non-compliant engine has been used in vehicles from all three manufacturers from model years 2014 through 2016.
I think I have said enough on the topic.
The only point I want to make is that this is going to go on for a while now.
More cars will be tested, more problems will be found.
This is not a technology problem or story at this stage, it is a human one.