A standard automatic gearbox works by using gears to match engine velocity to street speed. At very low velocity, the engine turns a small gear that is connected to a larger equipment that turns the wheels through other transmission factors. Chevrolet Spark is a well-liked example of CVT. (Photo: Chevrolet) https://brooksdczxt.verybigblog.com/32024278/the-5-second-trick-for-gearbox-cvt