Commission (Porsche intervening) v. Germany?

According to this article in the New York Times today, Porsche is examining whether it can join a lawsuit by the European Commission challenging a German federal statute, even though, as a spokeswoman for the European Court of Justice points out, there is no provision for private parties to do so.

The statute concerned guarantees the federal and state government of Lower Saxony a veto over major decisions at Volkswagen.