One free car class upgrade


How Can I Get a Free UNI RENT Upgrade?

To begin the booking process for free UNI RENT rent a car upgrade, fill in the form with your data to the right of the page, add in your destination, date, and time.

Select the car with the ideal rate for you, in message section write “FREE UPGRADE” and send your request to our reservations center.


Upgrade from Mini to Economy, Standard, or Crossover

You can upgrade any available car from one of the following four      UNI RENT car rental groups:

  1. Mini Car Rental (Group A)- upgrade to Economy Car Rental            (Group B)
  2. Economy Car Rental (Group B)- upgrade to a Standard Car Rental (Group E)
  3. Standard Car Rental (Group E)- upgrade to a Standard Crossover Car Rental (Group EQ)
  4. Economy Car Rental (Group C*)- upgrade to a Standard Car Rental (Group H*)

*Group C and H are with automatic transmission.


Send your request to our reservations center, select the car with the ideal rate for you and then you’ll receive reservation with an upgraded vehicle group.


Offer details

Minimum rental duration: 3 days

Valid rental dates between: 01.10.2020. – 30.11.2022.


  • By clicking button SEND RESERVATION INQUIRE you will activate an E-mail request to our reservation centre. We will endevour to reply the same or next working day.