My original post was not to discredit AMG or the engine it builds. What I couldn't understand was the bragging behind a simple marketing hype.
Like it was pointed out repeated in this discussion, even the /// engines are hand built to a point.
I am sure the guy in the attached video can easily put his signature claiming that he built this particular engine.
I am sure even AMG will have a similar individual involvement in the engine build process. I don't think some poor german worker is sitting there building a cylinder head by hand for weeks on.
My point is someone who has the means to forkout for a such an expensive car is concentrating on a stupid plaque that has some guy's signature. There is a lot more in the C63 AMG he should be proud of.