A Bumper to Bumper auto warranty is the most complete protection you can get for your car. Most companies do not use the term Bumper to Bumper anymore. They use names like Ultimate, Complete, Diamond, etc. No matter what term is used, a Bumper to Bumper warranty is an Exclusionary contract. By that we mean, everything is covered except under the “What Is Not Covered” or “Exclusions” section of the contract. Check your contract for complete details.