A car is a wheeled motor vehicle used for transportation. Most definitions of cars say that they run primarily on roads, seat one to eight people, have four tires, and mainly transport people rather than goods. Cars came into global use during the 20th century, and developed economies depend on them

he combustion chamber in an engine is where the magic happens. It's where fuel, air, pressure, and electricity come together to create the small explosion that moves the

car's pistons up and down