FCA reveals a little piece of the Alfa Romeo Stelvio in corporate video. Why?

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When OmniAuto revealed that a video of the Alfa Romeo Stelvio was made inside the Cassino plant, we were sure it was a leaked video or something of the kind. But it ended up being a corporate video of the plant, a clear attempt to present the level of assembly quality the new Alfa Romeo cars...
FCA reveals a little piece of the Alfa Romeo Stelvio in corporate video. Why?