Autonomous cars are robotic cars. Informally, they are also known as driverless cars or self-driving cars. Technically speaking, it is an autonomous vehicle that is very much capable of driving itself. It can actually sense its environment and navigate itself to a specific location without a human driver.
How do they work?
Autonomous cars sense their environment through the help of already existing technologies like radar and GPS. There are some cars that need to be updated every now and then in order to navigate specific locations. So, humans still play a big role in the robotic cars of today.