Whoa, back up kemosabe.
Before that question can be addressed, any attorney would need a whole lot more details here. Is mother dead? I would assume yes, but that fact is not necessarily obvious. If so, did she have a will and what did it say about who gets the car or selling possessions? Are you the sole heir or other beneficiary? What other assets did your mother have? What other debts does she have? Why does the car need to be sold at all?
The answer is no, you cannot just sell the car for any amount. It is an asset that would have to be appraised. If you are an executor, you have to sell the car for what it is reasonably worth (if the car is worth $2,500 for an appraisal then you have to sell it for that or best offer but you can't just sell it to yourself for $1.00).
I suggest that if you are the personal representative, that you sit down and at least pay for a consult with a probate attorney. Even if the estate does not justify hiring an attorney, the attorney can at least review things and make sure you avoid pitfalls like selling the car for any amount.
