An automobile, autocar, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed principally for the transport of people rather than goods. The year 1886 is regarded the year of birth of the modern automobile—with the Benz Patent-Motorwagen, by German inventor Karl Benz. Motorized wagons soon replaced animal-drafted carriages, especially after automobiles became affordable for many people when theFord Model T was introduced in 1908.
Cars are equipped with controls used for driving, parking, and passenger comfort and safety. New controls have also been added to vehicles, making them more complex. Examples include air conditioning, navigation systems, and in car entertainment. Most automobiles in use today are propelled by an internal combustion engine, fueled by deflagration of gasoline (also known as petrol) ordiesel. Both fuels are known to cause air pollution and are also blamed for contributing to climate change and global warming.Vehicles using alternative fuels such as ethanol flexible-fuel vehicles and natural gas vehicles are also gaining popularity in some countries.