Bernhard's influence is already being felt. He has abandoned some technologies that he regards as unnecessary, like a radio antenna integrated in the rear window. And he's reining in designers who have been "acting out their creativity too much," says Hans-Gerhard Seeba, a former VW executive. Bernhard also pushed the Chrysler project, opting to have his old company build VW's new U.S. minivan rather than re-engineer a European version. The deal marks VW's first major foray into contract manufacturing in North America, a risky but necessary move. It's part of his plan to populate the U.S. fleet with a wider variety of models, including more that are produced locally.
Yes, that's correct - act out is a set phrase, meaning to express one's self, usually to over-express one's self. It can also mean to give some physical expression of what you're thinking or feeling, as in a theatrical performance - hence the use of the verb "act" - and in this sense it's not necessarily bad.