The European Commission is still waiting for details of the German aid plan for Adam Opel GmbH, the troubled unit of General Motors Co., before it can decide whether it is in line with European laws.

"Until the German authorities have decided how much money they are going to give and how they are going to give it and tell us about it we can't begin to analyze the final package," said Jonathan Todd, the commission's competition spokesman.

The commission has received "voluminous" answers to its previous questions as to how a consortium led by Austrian-Canadian auto parts maker Magna International Inc. (MGA) was chosen as the buyer of the car maker, and is now studying those, Todd added.

-By Peppi Kiviniemi, Dow Jones Newswires; +3227411483; peppi.kiviniemi@dowjones.com