reimburses up to $15 a day for car rental or transportation costs including taxi, bus and train fare (up to $450), while your car is undergoing collision or covered repairs. Coverage of up to $100 a day (up to a limit of $3,000) is available for an additional cost. Even if you have this coverage, some car rental agencies may refuse to rent to you if you are under a certain age, are a poor credit risk, do not have an acceptable credit card or have an unacceptable driving record.