What is CVT (continuously variable transmission)?
A continuously variable transmission (or CVT) is a form of automatic gearbox that can change through an almost endless number of gear ratios, ensuring the engine is always operating at peak efficiency. As a result, cars with CVTs are often more fuel-efficient than those using regular automatic or manual gearboxes. The driving experience is different with a CVT though – you don't have the 'steps' as the gearbox changes gear so, when you put your foot down, a CVT can have the engine revving really hard for a long period of time while the gearbox 'catches up' while you accelerate. A CVT works by using a belt that runs between two cone-shaped pulleys, which can move in and out to infinitely change the effective gear ratio.
Some hybrid cars, like those built by Toyota and Lexus, are advertised with eCVT (electrified CVT) gearboxes. These feel like belt-driven CVTs to use but work using totally methods using planetary gearsets or automated clutches.
