Best-Kept Luxembourg Secrets

Jan 31, 2026 | Best-Kept Secrets | 0 comments

 If you want to avoid paying outrageous rental car fees (plus parking) and you need a car for a short trip or just a day or two, Flex Carsharing by CFL, Luxembourg’s public railroad company, is the perfect solution. 

Just download the easy-to-use Flex app and set up an account to reserve a lovely, affordable car for your Luxembourg explorations. The app shows Flex car locations throughout Luxembourg, including at train stops in some small towns.

 

Kevin, who has used Flex cars during numerous visits to Luxembourg, likes its flexibility, affordability and relative ease of use. Flex car usage typically costs €12–16 per hour—much cheaper than a rental car.

“I often use Flex cars located at the train station (Gare) in Luxembourg City or in one of the underground parking lots. When I first used a Flex car, it was my first time driving an all-electric car, and it was fun.”

A few things to know about Flex cars:

  • It’s best to make your reservation a day or two in advance since cars are available on a first-come, first-served basis.
  • Flex car license plate numbers begin with FX. The app provides your license number, which is how you find your car amidst the many Flex cars parked in an area. 
  • Reservations begin precisely at the time you set on the app. If you arrive earlier than your reservation time, you must adjust your reservation on the app or the car will not respond.
  • Flex cars are all-electric. Be sure to put the charger on the car upon returning it so it’s ready and fully charged for the next renter.
  • The Flex app offers various insurance plans.

Since Flex cars are controlled by Bluetooth, it’s important to keep your phone charged. Fortunately, most cars are equipped with automatic chargers. The app controls unlocking/locking and starting the car so there is no key or fob. 

Keep in mind that Luxembourg uses speed cameras and has very strict speed limits. Speeding tickets are costly, and Flex adds a surcharge on top of the ticket fee. Also, before driving in Luxembourg, it’s a good idea to review the country’s road signs, many of which are not intuitive for Americans. Here is a helpful website.

           

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