Automobiles are the most common form of transportation in our society. They are designed to carry passengers and goods and are able to perform complex technical systems.
There are many different types of automobiles. Each type has its own characteristics and capabilities. Some have four wheels while others have two. Depending on the model, they are able to carry a number of passengers and can travel at speeds.
The first three-wheeled automobile was invented in 1884 by Edward Butler. He used a horizontal single-cylinder gasoline engine with a drive chain to the rear wheel. This was a precursor to modern vehicles, such as the minivan.
Cars are also powered by a battery. These are better suited for light traffic. A car has more space and can be designed to carry a large number of passengers.
Motorcycles are self-propelled, but do not fall under the definition of an automobile. Unlike a car, a motorcycle can only carry a small number of passengers and may not have a steering wheel.
Several court cases have determined that a motorcycle is not an automobile. However, the National Highway Traffic Safety Administration (NHTSA) has adopted a flexible definition for motorcycles.
The NHTSA defines a motorcycle as a motor vehicle that has motive power and a seat for the rider. A helmet is mandatory for all riders.
Automobiles can be divided into passenger cars and commercial vehicles. Commercial vehicles are vehicles that are primarily used for commercial purposes. Automotive manufacturing has long been an American tradition, which has made automobiles affordable to middle-class families.