If you live in Germany you might get better rates with the "Happy Digits Sixt Card". Gold/Platinum gives you 25%/35% off the INTERNATIONAL RATES, while the the Happy Digit card gives you 20% off the EUROPEAN RATES.
For my personal rental pattern I almost always get cheaper rates with the Happy Digits rebate (I have two Sixt cards and decide for every rental which card to use).
YMMV!
Last edited by Hammer; Jun 22, 2005 at 5:26 am