New Amex Offer: Save $100 on a SIXT Car Rental

Updated: September 5, 2025, 9:13am CDT

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Table of Contents

What Are Amex Offers?
SIXT Amex Offer — Details
Is It Worth It?
Final Thoughts

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Those with upcoming car rentals should check their Amex Offers for a new offer to get $100 back with SIXT. We’re seeing this offer on numerous Amex cards right now, and it’s available until December 11.

Here are the details.

What Are Amex Offers?

Amex Offers are targeted offers that you can find on your Amex cards — both personal and business — to save money or earn extra points on an upcoming purchase. As these are targeted offers, not everyone sees the same offers in their accounts, and the offers you find on one of your cards may be different than offers on another card.

To use these offers, you must add them to your card and then make a qualifying purchase with that merchant before the deadline listed in the offer. Additionally, each offer comes with its own terms about qualifying purchases, so make sure to read these carefully.

SIXT Amex Offer — Details

SIXT, the rental car agency, is out with a new Amex Offer to save $100 on an upcoming rental. You’ll need to spend $500 or more by December 11, 2025, to receive this $100 statement credit.

Amex Offer SIXT September 2025 — Image Credit: American Express

This offer is only valid on rentals booked at the U.S.-based version of sixt.com, and purchases must be paid in U.S. dollars. Bookings made through third-party websites, such as rentalcars.com, won’t qualify.

Many Amex Offers allow you to complete the spending requirement in more than 1 purchase. However, this offer requires spending at least $500 in a single transaction. That means it’s ideal for those renting premium cars or renting for multiple days.

Hot Tip:

As with other rental car programs, SIXT has a rewards program, and getting elite status with a rental car company is pretty easy. With elite status, you’ll earn extra rewards, can shortcut the line at pickup time, and can even receive complimentary upgrades to nicer vehicles.

Is It Worth It?

Before you pull out your wallet to use this offer, check the rates SIXT is offering against other rental car companies. Check our guide to the best websites for finding cheap rental cars and see what prices are available.

When you factor in the $100 savings with this offer, does the price from SIXT come out on top? Spending extra just to get this credit won’t make sense in the long run.

If the SIXT price is competitive, then this offer is worth using.

Final Thoughts

Through December 11, you can save $100 on an upcoming rental with SIXT. You’ll need to first add this offer to your card and then spend at least $500 in a single transaction using that same card.

This Amex Offer isn’t ideal for those renting an inexpensive vehicle for 1 or 2 days. For those with a premium or longer rental, it could provide up to 20% savings when you factor in the $100 statement credit.