Fiat SpA (F.MI) Chief Executive Sergio Marchionne said Thursday he has "nothing to announce" regarding reports that Fiat is interested in acquiring a majority of General Motors Corp.'s (GM) European unit Adam Opel GmbH.

"I have nothing to announce," he told analysts on a conference call. "There is nothing established" in terms of talks with Opel.

"To the best of my knowledge we have not had direct interaction with Opel."

He said Fiat is in talks with other auto makers "around the world" in order "to accomplish two things."

The two ultimate goals for Fiat, he said, is to be involved in a process whereby global auto volumes are 6 million units a year, and that "we can make cars of an architecture to drive the business."

-By Jennifer Clark and Jeff Bennett, Dow Jones Newswires; 39 02 58 21 9904; djitaly@dowjones.com