Have you been driving down the road and suddenly seen a car drive by plastered in ads for potato chips or an energy drink? Maybe you thought the car belonged to an employee with the company. But a number of advertising firms will actually pay drivers to have their own cars covered with ads.

Depending on the firm, the length of the promotion and your region, you can be paid between $400 and $900 per month to serve as a moving billboard. Some companies will even provide you with a car to drive, free of charge. All you have to do is sign up on the company's Web site, filling in basic demographic information [source: Autowrapped, Free Car Media]. Then, if a specific advertiser decides they want to target your particular demographic, they'll select you for a promotion. Promotions last from a few months to years, so the extra income could add up to a nice sum.



Of course, since you're chosen based on demographics and region, it could be that you sign up, never to be selected by a company, or have to wait years before being selected. If a sponsor chooses you, the amount of commitment and effort is relatively minimal. You'll be required to drive a certain number of miles per month to fulfill your contract, and you'll have to set aside four to eight hours for your car to be wrapped at the beginning of each promotion. Once the ads are removed, your car will be undamaged by the process.