Car Rentals and Island Hopping

by Debbie on March 22, 19103 at 18:40:32:

Thanks to Lisa, I know I can buy Island Hopper air passes on Aloha Airlines for my family of four. Does the same thing apply with car rentals and if so which companies?

We will be flying into Honolulu on Aug 20, going to the Embassy Vacation Resort on Kauai on the 22nd and leaving from Honolulu on the 29th.We want to see as much as we can while in the Islands! Thanks for any help you can offer!