What is a CVT transmission and how does it differ from conventional automatics?

A Continuously Variable Transmission (CVT) uses a belt or chain running between two variable-diameter pulleys to provide infinite gear ratios within its range, unlike conventional transmissions with fixed gear steps. This allows the engine to operate at optimal RPM for any speed or load condition. Benefits include smooth acceleration without shift points and potentially better fuel efficiency. Drawbacks include limited torque capacity and unfamiliar feel to some drivers.