An automobile is a self-propelled vehicle that travels on land and has four wheels. It also uses an internal-combustion engine for power. Typically, it is a passenger vehicle that carries people for personal transportation.
In order to drive a car, you must have a valid driver’s license and the vehicle must be insured. You must also follow the rules and regulations set by each state regarding where you can drive your vehicle, what speed limit you may drive at, and other restrictions. Depending on the type of vehicle you choose, it may be categorized into different classes and require additional licensing requirements. Some vehicles are more dangerous than others, and therefore are regulated more closely by the government to prevent injuries or deaths from occurring on the road.
The first modern automobile was invented by Karl Benz in Germany in 1885 and was granted a patent on 29 January 1886. His inventions included the Otto cycle petrol engine, an accelerator for speed regulation, a battery ignition system, and the first radiator for cooling the engine.
Since then, there have been many developments in the automotive world. Significant reductions in automobile accidents have come from the addition of safety belts and laws that mandate their use, as well as airbags, specialised child seats, and structural changes to absorb crash energy. Another important development has been the mass production of cars using an assembly line by companies like Ford and General Motors. This has allowed for lower prices, more choice in models and colors, and shared mechanical parts across manufacturers.