Investment group RHJ International SA (RHJI.BT) Monday said it is in talks with General Motors Corp. (GM) about buying a stake in its European subsidiary, Adam Opel GmbH.

RHJ until recently appeared to be out of the running for the Adam Opel business, which includes the Vauxhall brand in the U.K. The German government, which is providing financial support for the carmaker, favored a bid from Canadian auto-parts manufacturer Magna International Inc. (MGA).

RHJ said is has been in talks with GM "over a number of weeks," describing the talks as "at an advanced stage." No further details were provided.

-By Adam Cohen, Dow Jones Newswires; +322 741 1486; adam.cohen@dowjones.com