The survival of Chrysler and General Motors remains in doubt after Congress adjourned late Thursday night without passing a Senate bailout bill for U.S. automakers. The U.S. House passed a version of the bailout bill Wednesday that included a key green provision requiring automakers to abide by California’s strict fuel-efficiency requirements. However, the Senate’s rescue bill contained a provision essentially stipulating the opposite, but now that the legislation is dead, neither version will be passed into law.