CNN outlines four ways Detroit can be fixed, all at a high cost. CNN estimates the final price tag for a simple bailout could top out at $130 billion for the federal government. In addition to the $39 billion GM and Chrysler have requested, parts dealers and suppliers have asked for bailouts, and consumers may be lured into buying Detroit’s products with tax credits and other incentives that could cost the government billions more.

Auto parts suppliers want $18.5 billion in guarantees for loans owed to them by GM and Chrysler. Auto dealers want $5 billion to $20 billion in loan guarantees so that they can finance their inventories. While Ford has said it doesn’t need federal help right now, it initially asked in December for $9 billion in loans and could re-submit the request.

Finally, the “Cash for Clunkers” tax credit, in which owners of inefficient vehicles more than 10 years old would receive a $10,000 tax credit for buying new efficient vehicles, is still floating around Congress is various guises after being stripped out of the stimulus package. The estimated cost to taxpayers is about $16 billion for the tax credit. Sen. Barbara Mikulski of Maryland has trumpeted a proposal to allow car buyers to deduct interest from their auto loans on their taxes, which was also taken out of the stimulus bill in favor of a deduction for sales taxes on new car purchases. The auto industry has heavily backed these bills, believing that they would stimulate demand for new cars.

GM and Chrysler have made dire predictions for what might happen if they go into bankruptcy. They said that if they were unable to find loans or the government did not lend to them, the move could cost the federal government hundreds of billions of dollars in lost tax revenue. CNN’s xperts agree with this analysis, and say that a bankruptcy of the magnitude of GM’s has not ever occurred before.