Out of all the popular cities in Tunisia, Tunis is the cheapest city to rent a car in at just $32/day. Renting a car in Tunis is 38% cheaper than renting one in Enfidha where the per day rate is around $51. Other fairly inexpensive cities in Tunisia to get a rental car in are: Houmt Souk ($41/day), Monastir ($48/day), and Enfidha ($51/day). While these cities typically have cheaper prices than the rest of the country, travelers looking to rent a car in Tunis should expect to spend around $32/day on their transportation. The most popular city to rent a car in Tunisia is Tunis.