Write down a list of the services you'll need beyond the usual tire changing and battery charging. Do you live in a rural area that's a long way from a mechanic? You might need coverage that provides long distance towing, as some services will only tow your car a few miles; after that, a towing bill can run into hundreds of dollars. For example, AAA offers three levels of service with vastly different towing coverage and pricing. The basic plan will tow your vehicle three miles, while the most expensive plan will provide a tow of up to 200 miles (see Resources).
Learn the basics of roadside assistance before shopping. Then compare the services and cost of each company. And consider the "extras" that don't have anything to do with car problems. Some programs provide travel agency assistance and shopping discounts (see Resources).
Call a few local mechanics and car repair shops to find out if they are contracted by the company you're considering. A roadside repair contract won't do you much good if the nearest mechanic is hours away. You'll want a company that has mechanics who are within a reasonable distance from your home or the areas you travel frequently. Determine what the average response time will be.
