Automobiles (also known as cars) are land vehicles that use an engine to drive wheels that make the car move. They are usually built to carry passengers. They are often made to look good, but they also have to be sturdy and safe. New technical developments are constantly being used to improve the design of automobiles. They include better engines, safer braking systems, and improved fuel efficiency. There are also new ways to reduce pollution and noise.
Having your own automobile saves time in your daily commute, shopping trips, and visits to friends and family. Without an automobile, you would have to rely on public transportation, which might not always be convenient or reliable. Cars can also make it possible to travel long distances for work, which expands your job possibilities and social circle.
The modern automobile is a complex system that has thousands of parts. Most of these are arranged into several semi-independent systems, such as the circulatory system that includes the heart and blood vessels, the engine that uses gasoline to run, and the cooling and lubricating system that requires fluids.
In the early days of the automobile, there were three main kinds of engines for cars: steam, electric power, and gasoline. The steam engine could go at very high speeds but was difficult to start, and battery-powered electric cars were limited in speed and had a hard time finding recharging stations. Gasoline-powered automobiles quickly became the most popular.