5 HRS 50KMS FOR INNVOA CRYSTA CHENNAI SERVICES Car rental, also known as car hire or rent-a-car, is the process of renting a vehicle for a short period from a rental company. These companies offer a variety of vehicles, like compact cars, SUVs, and luxury cars, for a fee, often for a few hours, days, or weeks. Car rentals are commonly used for personal travel, such as vacations, or for business needs when temporary transportation is required.