General Motors Corp is prepared to part with a controlling stake in Opel/Vauxhall for nothing but a pledge to invest directly in a new company formed from its European operations, the Financial Times said on Sunday, citing two people familiar with its plans.

An investor will be asked to pay at least 500 million euro, or $652 million in equity, but the automaker will realize no financial gain as the money will be injected directly into Opel, the report said, citing a person familiar with GM's thinking.

GM is also prepared to unload Saab, its Swedish premium brand that filed for creditor protection in February, for as little as nothing in order to divest the brand, the report said.

GM, which has lost more than $82 billion since 2005, has received $13.4 billion in federal loans and is seeking more than $16 billion in additional government aid.

The White-House appointed task force has given GM 60 days to come up with a restructuring plan that cuts costs and debt levels more deeply than the automaker had planned.

By that point, officials have promised a decision on whether to support GM's turnaround as a much smaller auto company or whether to put it through a bankruptcy process intended to shed debt and laggard assets.

Last week, GM Chief Executive Fritz Henderson said the automaker was in talks with more than six financial and industrial groups about acquiring a stake in its European arm.

The FT said Commerzbank, GM's advisers on Opel, last week sent out an offer document for the German brand.

Italy's Fiat and SAIC, GM's main joint venture partner in China, have both denied interest in buying Opel/Vauxhall.

The FT also said GM's European unit is engaged in aggressive contingency planning to protect itself in case the company files for bankruptcy in the United States, citing a person familiar with GM's plans.

Options under consideration at GM are said to include putting financing in place for its international holdings ahead of a bankruptcy filing, and seeking debtor in possession financing from the U.S. government for the international operations after a Chapter 11 filing, the report said.

(Reporting by Jui Chakravorty Das; Editing by Anshuman Daga)