Both Endurance and CARCHEX have both, so we award both of them with a perfect 5.0 score. The transparency score comes from whether a warranty company offers a money-back guarantee and whether it provides sample contracts for its warranty plans on its website. We also looked at what deductible options each company offers as well as any applicable discounts.

In each case, we used different vehicles and warranty plans in order to get a cross-section of what each provider charges.

To determine a cost score, we got several quotes from both providers. Endurance scores a bit higher in this category as it’s a direct provider of its warranty plans. Endurance has six levels of coverage and CARCHEX has five. We consider a warranty provider’s coverage options when determining this score. We weigh a company’s longevity, availability, and partners as well as its score and accreditation status from the Better Business Bureau (BBB). When scoring extended warranty companies in this category, we look at a few different factors. When comparing car warranty companies, we look at the following scores side by side. We update our review standards multiple times a year to ensure that we’re providing you with the most current and accurate information about extended warranty providers.

Carshield reviews