We can classify car rentals as long term and short term rentals into two groups. Daily renting is mostly preferred in airports and for touristic trips, Companies prefer long term rentals for their staff and business operations. Thanks to the advantages of long term rentals and ease of practice of long term rentals, companies prefer fleet contract hire in common. Suppliers that provide with car rental services have a wide network spread almost to all airports and cities with their state of art booking systems. The first known Office in the field of car rental was established by Warren Avis in the year 1946 in USA , Detroit airport. Afterwards, he spread it with franchise method with the name of Avis worldwide. With the establishment of other multinational companies like Hertz, Budget, Fox, car rental system has been begun to be used all over the world.