Sixt and Miles&More are currently running a promotion granting bonus miles on car rentals. Instead of the normal 500 miles per rental, you can now earn up to 7,500 miles. For the highest possible bonus, you must rent a rather expensive for at least ten days.
You should book through the following landing page to get the bonus:

The promotion is valid for bookings made until June 30, 2025, and rentals until July 31, 2025. You will receive the following mileage credits, depending on the rental duration and car category:
- Mini, Economy, Compact and Intermediate vehicles (e.g. BMW 1 Series, Mercedes-Benz A-Class, VW Touran):
- 500 miles for rentals of 1-2 days.
- 1,500 miles for rentals of 3-5 days.
- 2,500 miles for rentals of 6-9 days.
- 3,500 miles for rentals of 10 days or more.
- Standard, full-size, premium and multi-seater vehicles (e.g. BMW M235 Gran Coupé, Audi Q5):
- 750 miles for rentals of 1-2 days.
- 2,000 miles for rentals of 3-5 days.
- 3,500 miles for rentals of 6-9 days.
- 5,000 miles for rentals of 10 days or more.
- Luxury and special classes (e.g. BMW M850 Convertible, Porsche 911, Audi A5 Convertible):
- 1,000 miles for rentals of 1-2 days.
- 2,500 miles for rentals of 3-5 days.
- 5,000 miles for rentals of 6-9 days.
- 7,500 miles for rentals of 10 days or more.
Identifying Vehicle Class at Sixt
Under this link, Sixt lists all car types by rental country. First, you may need to filter by the country of your rental location at the top left. Then, you’ll see individual types listed with their ACRISS code:

The first letter of the ACRISS code corresponds to the vehicle category as follows:
- M = Mini
- E = Economy
- C = Compact
- I = Intermediate
- S = Standard
- F = Fullsize
- P = Premium
- L = Luxury
- X = Special
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Conditions
As with any offer, there are certain limitations. Please note the following conditions:
- Booking period: Until June 30, 2025
- Rental period: Until July 31, 2025 (the last day for vehicle return)
- Minimum rental duration: 1 day
- Maximum rental duration: 27 days
- Valid for rentals worldwide
- Some rates, such as corporate rates, truck rates, etc., are excluded
- To receive award miles, you must provide your Miles&More service card number when making the online reservation and potentially present your Miles&More service card at the Sixt counter.
You can make bookings either through Sixt’s website or Miles&More’s website.
Example: 2,500 Miles with a Rental for €250
Below is a short example. In Mallorca, Sixt offers a Peugeot 308 (or similar) from July 8 to 14, 2025 for a total price of €250 (about €42 per day):

This rental is eligible for a 2,500 Miles&More award miles. And even better – you would pay exactly the same when booking Sixt’s regular rate, making this a decent offer to earn additional miles without spending extra.
That being said, you should always compare the Miles&More special rate and the Sixt rate before booking. If there is a price difference, it’s up to you to decide if the bonus mileage justifies spending a couple of bucks extra.
Sixt also offers an easy and long-lasting status match: