Automobiles are vehicles that have four wheels and are used to transport passengers. They also have a steering wheel and a seat for the driver. Usually, the term automobile is used interchangeably with the word motorcycle.

Motorcycles have two wheels, and usually, they carry one to three passengers. The rider must wear a helmet. However, many people incorrectly use the term automobile.

Several courts have ruled that a motorcycle does not qualify as an automobile. Some of the reasons are related to the number of wheels and the fact that the vehicle is not fully enclosed.

In the United States, motorcycles are required to emit less than five grams of hydrocarbons and nitric oxides per mile. The European Union and California have stricter limits on these substances.

While cars may be more convenient to drive, motorcycles are much more reliable. Besides, there is more room inside a car.

Moreover, bikes are better for light and heavy traffic. During the 1970s and 1980s, pedal cycles were often called bicycles. These were equipped with small spark ignition engines.

Motorcycles were first marketed in 1894. Two German engineers, Gottlieb Daimler and Wilhelm Maybach, designed the Daimler Reitwagen. This engine was powerful and had top speeds of under seven miles per hour.

Despite the fact that motorcycles were the biggest sellers in the Economy tier, cars still outperformed them in the Sport and Performance tiers. Those two tiers accounted for more than half of the sales in 1996.