Doesn't the S40/Mondeo class cost EUR 49 per day at Sixti? In my experience usually you get at Sixt a similar car for about the same price, but then you still have all the benefits of your Sixt express card depending on its color. For me the most important (Platinum):

- Usually no waiting, no hassle, good service
- Renting a Mercedes A class on average I get a Mercedes C class (in Germany)
- 2000 LH miles at certain locations, if I use ring&rent