Originally Posted by I-Like-To-Bike

"Covered" for what? Good idea to read what is really being offered, and not Internet chatter; the credit cards may offer a sliver of protection for collision damage to the rental car only and nothing else. Hardly the answer to the OP's issue and concern about personal liability for serious money in case of an accident involving injury and others' property.

BTW how does whatever collision coverage is offered by credit card companies for car rentals apply to Flexcar/Zipcar usage? Do Flexcar/Zipcar customers pay for their rentals with credit cards?