normally i dont make any difference between car rental companies when I get a car for the weekend. but this time, i was so impressed by the good service of sixt, I thought i do them a favor back and leave a good word for them. the car was very clean and brand new, but what impressed me was that they immediately offered me a navigation system for free when i told them that i thought it was included in the price. they also agreed to take the car back on sunday so i could save an extra day of rental. in addition i got an upgrade to a higher car group even though this was my first rental with them. keep up the good work guys! AC. Post Management Response