I find it super interesting and would like to discuss it. here's a piece about it: http://www.latimes.com/business/autos/la-fi-hy-volkswagen-probe-20150918-story.html Why would they do that? what would happen if their cars ran in clean mode the whole time? like what part of the engine would be less efficient? and how the HELL can a company that big have a meeting, discussion, then assign software engineers to write this into the car's software? and obviously send people to research the testing procedure and conditions, i mean that looks as much work as just freaking fixing the emissions problem to begin with! and they did their software trick so good only now they've been discovered, after the cars been out for years. and 40 times what's allowed?? that sounds crazy, i'm really interested in the process that generates NOx and how that affects car performance. P.S: yeah I'm back, hopefully not in full capacity, this place sucks time like... facebook or something, which I deactivate 84%of the time.