Yes. The big question is how much income do you have to report? Likely you’ll receive Form 1099-MISC or other information return listing the value of the car that the IRS wants you to report as income. However, one Tax Court case allowed the winner to report only the amount that could be realized on an immediate resale of the car. Consult your own tax professional for advice on how to report your prize.
Generally, an unmarried person who maintains a household for dependents and is allowed to compute his or her tax based on head of household rates, which are more favorable than single person rates.