1. A car can only hold etc of one bank, but it can be bound to a credit card to pay for multiple cars.

2. When filling in the authorization for deduction of ETC business [ETC: Electronic Toll Collection System], you can fill in five "designated vehicles" for binding payment, and more than five vehicles need to fill in "designated vehicles" on a separate page. In other words, there is no limit to the number of "designated vehicles" bound by a credit card, but the cardholder and the owner of the paid vehicle need to sign separately.