The reasons why consumers need a rental car can vary—maybe their own car is in the shop, perhaps they don't own a car and want to drive to a travel destination, and, of course, there is the need to rent a car when you have flown to another city. Regardless of the reason, most consumers will - at some point in their lives - require the services of a rent-a-car company. Fulfilling that need can be a lucrative business opportunity for the right entrepreneur.