CVT (continuously variable transmission)
An automatic with no fixed gears, tuned for smoothness and fuel economy.
A CVT replaces fixed gears with a belt or chain running between variable pulleys, giving an infinite spread of ratios. The engine can always sit at its most efficient speed, which is why CVTs dominate fuel-economy leaders.
The driving feel is seamless but different: under hard acceleration the engine holds a steady high note instead of stepping through gears. EPA listings label CVTs as 'variable gear ratios'.
From the data: Of the 19,491 trims in the Trimslate dataset, 1,716 use a CVT.