Automobiles are a major source of transportation in the world today. More than 1.4 billion people own passenger cars, and approximately one-quarter of those vehicles are found in the United States. Americans drive approximately three trillion miles a year. The use of automobiles has created new industries and increased personal freedom. The invention of the automobile led to the development of new technologies, including automobile assembly lines, gas pumps, and other components. In addition, the use of automobiles allowed humans to begin using fossil fuels.

There are many types of automobiles. These include motorcycles, automobiles, and trucks. The differences between these vehicles are often seen in the size of the vehicle and the types of tyres they use. These factors play a huge role in handling. For example, motorcycles with longer wheelbases will have better stability, while those with shorter wheelbases will be more prone to lifting the opposite wheel off the road. Motorcycles also have the ability to perform exciting stunts such as wheelies and stoppies.

Automobiles vary in size, design, and engine. Most automobiles have four or five seats, while larger vehicles may be considered limousines, minivans, SUVs, or buses. Automobiles also differ in fuel efficiency. The most fuel-efficient vehicles, however, are motorcycles, which can average over 50 miles per gallon. By contrast, a typical car gets only ten miles per gallon.