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What to do with an expensive, upside-down car loan?
The answer depends on your wife's overall situation, whether you are in a community property state, and other factors. I'm assuming that since your wife paid $5,000 more for a car than it was worth, has a six-year, 25% auto loan and you talk about repossession as a routine event, that her credit history is extremely poor. If that is the case, you're unlikely to be able to refinance, particularly for more than the car is worth. You're in a bad situation, I'd look for a legal clinic at a nearby law school and find out what the law says about your situation in your state. If she has other debt, your best bet is to put the car in a garage somewhere, stop paying and demand better terms with the lender -- threaten bankruptcy. If they don't go for it, and your wife has other debt, she should look into bankruptcy. Given the usurious terms of the loan, you have a fighting chance of keeping the car in a Chapter 13. Find out and the legal implications for this before proceeding. If she doesn't have other debt, you need to figure out to get the thing repossessed on the best possible terms for you. If it's her mother's car, you're in a moral dilemma.  Bottom line, get rid of this thing asap. And make sure that going forward you are both controlling the finances.