I need a car for atleast $300 or $400...anyone selling a car in Louisburg or Raleigh NC?

I need a car, im a 19 yr old college girl without a car, my mother is a struggling single mother and dont have a job, im the only child and i have no father im drawing unemployment and i really need a car. its hard on my mother driving me back and forth to school, so if i could save up my money to but a car she wouldn't have to drive me any more