AN AUTOMOBILE is a four-wheeled vehicle designed to carry one or more passengers and used for travel over long distances. Unlike a horse-drawn carriage, an automobile is self-powered by an internal combustion engine or electric motor and can be driven without needing to be guided by another animal.
Automobiles have profoundly affected the history and economy of human society. Few inventions have had such widespread impact in modern times. In addition to revolutionizing public transportation, the automobile has transformed the lifestyles of millions of people.
The design of an automobile is a complicated balance of many factors. For example, engineers and designers must consider such factors as performance, cost, handling, safety, ergonomics, comfort, and appearance. Often, compromises are made in order to satisfy all of these requirements. The design of an automobile must also incorporate new technical developments. These technical advances may include improvements in the body, chassis, engines, drivetrains, and control systems.
Today, there are more than 1.4 billion automobiles in operation worldwide. They are the dominant mode of personal transportation, with nearly half being passenger cars.
Having a car means you don’t have to depend on others for a ride or wait around for the next bus, and it gives you the freedom to do whatever you want to do. And when it comes to speed, nothing beats the Audi RS6 Avant. This fast wagon can hit 60 in 3.1 seconds, which is plenty to get you to your destination faster than most people can walk.