I was browsing around and I see if your a 1K, you get free plat status with Sixt. Normally 20 or more rentals/year
Perks are:
Upgrade to the next higher car group (subject to availability).
Fast Lane for privileges and fast service at all airports.
35% discount on all discountable rates or the Sixt corporate rate.
20% discount on Holiday Cars* when booked direct.
20% discount on Sixt limousine service in Germany, Austria and Switzerland, 10 % discount in other foreign countries
Mobility guaranteed: Forgot your reservation?
No problem: You will always get a rental car from Sixt if you call us up to 5 hours before your rental start time.
Though, mainly its in Europe. I did notice in Munich they got Sixt express kiosks in the airport, wher eI'm guessing you can proabably check in and agree to the rules, and the car will be waiting for you.
http://www.e-sixt.com/main/common/al...rd.php?lang=en
NEW LINK
http://www.sixt.com/rental-services/...platinum-card/
For 1P/2P, its the Gold status which perks are:
25% discount on all discountable rates or the Sixt corporate rate.
15% discount on Holiday Cars* when booked direct.
20% discount on Sixt limousine service in Germany, Austria and Switzerland, 10 % discount in other foreign countries
Mobility guaranteed: Forgot your reservation?
No problem: You will always get a rental car from Sixt if it is reserved up to 12 hours before your rental start time.
http://www.e-sixt.com/common/all/doc...rd.php?lang=en