One aspect of President Obama's plan for the automakers, from his remarks today:
... several members of Congress have proposed an even more ambitious incentive program to increase car sales while modernizing our auto fleet. And such fleet modernization programs, which provide a generous credit to consumers who turn in old, less fuel-efficient cars and purchase cleaner cars, have been successful in boosting auto sales in a number of European countries. I want to work with Congress to identify parts of the Recovery Act that could be trimmed to fund such a program, and make it retroactive starting today.
Some of these propsals have involved discriminating in favor of domestic (or North American) cars, so it will be interesting to see what comes of this.