http://www.carfax.com/cfm/general_check.cfm?partner=css_z - You can go online to learn where you can do a free car check. Often, there are websites that allow you to use the car's VIN to pull up any history of auto damage on the car or if there is an existing car problem you need to be aware of. Avoid the risk of buying a problem car and try to learn more about the vehicle before you buy one.