INVECS-III is an advanced system that automatically selects the optimal gear ratio based on road and driving conditions ("optimal control"), and utilizes "learning control" to match the particular driver's driving style. In addition, a CVT that brings out the efficiency from the engine performance is provided. Like a conventional automatic transmission, there is no jolt when shifting gears and every time the accelerator is applied there is enjoyable, smooth acceleration.
Furthermore , a torque converter enables creep forward driving (slight deceleration) when the accelerator is not applied and hillstarts are made fun.

INVECS-III CVT is equipped on the Colt, Lancer/Lancer Wagon, and Dion.
Lancer/Lancer Wagon are equipped with a 6-speed sports mode for a sporty, manual-like driving experience.

The Continuously Variable Transmission makes for optimal driving pleasure by downsizing the pulley piston, reducing the oil pump discharge rate, and controlling direct torque control. All of this results in efficient engine output, offering drivers an exceptionally smooth ride. Based on driver demand as measured by accelerator travel information, optimal efficiency is achieved between the engine and CVT according to the motive forces experienced under driving circumstances. Supple acceleration and smooth driving feel are realized in all kinds of conditions while also improving fuel economy.