-> it looks like this motors are only a bit off in the laboratory test (they are almost EURO 6 - but not without the cheat)
"Only a little bit off"? They emit 10-40 times as much NOx as they're supposed to (EPA source[PDF warning]). That's not "a little bit", that's "actually a fuckload".
-> EURO 6 from VW is fine (see http://www.theicct.org/nox-con...) as other German manufacturers, but some others have problems.
The linked paper only shows test results from a single VW vehicle. Not enough to say anything about VW's general compliance or lack thereof.