Typically you owe more on the vehicle than the vehicle is worth, so there is no value to the trustee in selling the vehicle to pay any creditor other then the lender that did the vehicle loan. If you want to reaffirm the loan and the lender is willing to do that, then you likely can keep the vehicle, if you can make the payments.
But if you are in bad financial straits, that may not be a wise choice. It always amazes me that people in financial trouble want to buy/keep new cars and fork out the money on a depreciating asset when a used car would be a much smarter financial move.

