The accelerator pedal, also known as the gas pedal or throttle, is a pedal found in most motor vehicles that allows the driver to control the speed and acceleration of the vehicle. When pressed down, it increases the flow of fuel and air into the engine, causing it to produce more power and go faster. The amount of pressure applied to the accelerator pedal determines how quickly the car will accelerate - the harder you press on the pedal, the faster the car will go. In some vehicles, there may also be a cruise control feature that allows drivers to set and maintain a constant speed without having to keep their foot on the accelerator pedal.