BERLIN — The German government has rejected European concerns over its role in the sale of carmaker Opel to a consortium led by Magna, saying they were based on misunderstandings that could be cleared up.

Germany’s economy minister Karl-Theodor zu Guttenberg said Saturday that he did not see any reason to reopen negotiations over the decision for the Magna consortium to buy a majority stake in Ruesselsheim, Germany-based Adam Opel GmbH, and expressed belief the European Commission concerns could be addressed.