Alamo Rent A Car is a car rental agency. It is base in Tulsa, Oklahoma, but has branches across the United States, Canada, Mexico, Central America, South America, parts of Africa, Europe, and Australia as well as some locations on various Caribbean islands. The chain was started in 1974 with several locations in the state of Florida. It was liked by many because of its unlimited mileage program, meaning that people could travel any distance with the car they rented for no extra charge. In the United States, Alamo rents mostly General Motors automobiles.