Craislist cars are crap. I used to sell cars, and i can tell you that 90% of the time a car is on CL, its boarder line worthless and the customer is hoping you dont catch the issues the dealer did. The exception to this is if you are looking for old classic cars or collectibles.
I dont know your financial situation, but have you thought about financing a inexpensive car? Its builds credit fast, also helps you purchase a home in the future. If you like, PM what you are looking for and budget and i can help you find something.