Car rentals are easy in the United States. In addition to a valid driver’s license from your country of residence, you must meet the car rental company’s age requirements. Requirements vary, but typically, you cannot rent a car if you are under 18. In many cases, you cannot be younger than 21. Apart from meeting those general requirements, the car rental process in the US is easy. When you book with Hotwire, you simply search for your car rental type of preference. Once you’ve decided, you can book your rental in a few clicks.