All new cars are covered by a factory warranty, which will assure you that the new car you buy is free from manufacturer's defects. The length and terms of the warranties differ from company to company. Most car companies will offer a three-year/36,000-mile bumper-to-bumper warranty, and a five-year/60,000-mile powertrain warranty, whichever comes first. There are some car companies, however, that offer a ten-year/100,000-mile powertrain, and a five-year/60,000-mile bumper-to-bumper warranty. These car companies claim to have the best warranty coverage in the world.

Another component of a really good warranty, not usually covered by normal warranties, would be their level of roadside assistance. This type of warranty will guarantee you assistance if you are stranded on the road. This warranty will pay for assistance you receive in cases such as running out of gas or a flat tire. While most car companies will offer you a three-year/36,000-mile roadside assistance warranty, others will give it to you for five years, with unlimited mileage.

The longer the warranty is valid, the better it is for you. It is usually written with a length of time or the mileage of the car, whichever comes first. When looking at a warranty, you should consider your driving habits. If you drive a lot and are putting a lot of miles on your car very fast, you should not look at warranties with a mileage limit. There are some warranties that offer unlimited mileage. If you drive a lot, this would be best for you.

The only way to find the "best" warranty is to shop around. There are many places that sell warranty coverage to car owners, but only a few will give you a good deal. Organizations such as the Better Business Bureau and other publications will release ratings of these companies. You should make sure that you only deal with companies that have a high customer-satisfaction rating. This will guarantee that your car is protected adequately.