It pays to know where to advertise to reach the target market and to be familiar with the nature of the customers. Make poster board signs and place them in the windows when the car is parked. A sign in the left rear window, however, does not impact the driver's view and can remain up while driving. Print up flyers with a photo and place them on corporate and shopping center bulletin boards. List on the Internet, searching for every available web site that takes car listings.
Most communities have a shopper's newspaper, which only charges a fee if the vehicle is sold.
These are usually sold at convenience stores. When calling to place the ad, ask which day they are published to get the freshest editions with the most current listings. Also, check around to see if there are any papers or tabloids in your area that allow car listings for sale free of charge. These are good for an additional listing and don't cost a dime. Since advertising is best done locally, do an Internet search using such keywords as auto, classifieds, ads and the name of your city or state.