An example of a comparison site is credit card comparison sites. you enter in all your information (name, birthdate, address, SS) and based on your credit score they are able to come up with and...
There are many comparison sites available. There are sites for cars such as Edmunds. There are also sites for shopping and finding the best prices such as shopping.
Many different websites offer car comparisons. Some offer price comparisons for shopping while others compare one car against another for overall performance and value.