Autonomous cars, also known as self-driving cars, are vehicles that can navigate and operate without human intervention. They use a combination of sensors, cameras, and artificial intelligence to understand their surroundings and make driving decisions. This technology aims to improve road safety, reduce traffic congestion, and enhance mobility for people who cannot drive. These vehicles are equipped with advanced systems that allow them to detect obstacles, follow traffic signals, and communicate with other vehicles. Companies like Waymo and Tesla are at the forefront of developing autonomous driving technology, which is being tested in various environments to ensure reliability and safety.