A CVT (Continuously Variable Transmission) is an automatic gearbox that uses a steel belt running between two variable-width pulleys instead of fixed gears. Because the pulleys can slide to any ratio, a CVT delivers seamless, jerk-free acceleration with no gear shifts at all — making it the smoothest automatic type in city driving.
How it works
Each pulley in a CVT is a pair of cones that move closer or farther apart, changing the effective diameter the belt runs on. The gearbox continuously adjusts both pulleys to keep the engine at its most efficient speed, which is why CVTs often match or beat manual fuel-economy figures in stop-go traffic.
The known quirk is the "rubber-band effect": floor the throttle and the engine revs climb and stay high while road speed catches up gradually, producing a droning sound. Most modern CVTs mask this with simulated "steps" that mimic gear shifts under hard acceleration.
Why it matters when buying
A CVT usually costs ₹1–1.5 lakh over the manual variant — more than an AMT but generally cheaper than a DCT. It is the best pick for relaxed city commuting: smooth, efficient and mechanically simpler than a dual-clutch. Enthusiastic drivers may find it uninvolving, and belt replacement outside warranty can be expensive, so a long extended warranty is worth considering.
CVT cars in India
Honda is the biggest CVT proponent — the Amaze, City and Elevate all use one. Hyundai and Kia brand their version IVT (Intelligent Variable Transmission), offered on the i20, Venue, Creta, Sonet, Syros and Seltos petrols. The Nissan Magnite and Renault Kiger also offer CVT options on their turbo-petrol engines.