DETROIT General Motors could get as much as $5 billion more in federal loans, while Chrysler could get $500 million as they race against government-imposed deadlines to restructure, according to a government report filed Tuesday.

The quarterly report by a special inspector general on the auto industry and bank bailout programs says the money will be made available for working capital. GM has until June 1 to complete restructuring plans that satisfy the government. Chrysler has until April 30.

A person briefed on the plans said Tuesday that the exact amount of the loans have not been finalized and will be worked out with the companies. The person asked not to be identified because the negotiations are confidential.

GM already has received $13.4 billion in government loans. Chrysler has received $4 billion.

The government's auto task force rejected both companies' restructuring plans on March 30 and gave Chrysler until the end of April to make further cuts and take on a partner or face liquidation. If GM doesn't meet its deadline, it will be forced to restructure under bankruptcy protection.

The Treasury has estimated that it will spend up to $1.25 billion to guarantee warranties for people who buy Chrysler or GM vehicles during the restructuring period. The program is designed to reassure consumers that their warranties will be honored.