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Aakash Johri

7w

What is the difference between different types of automatic transmissions (AT, AMT, CVT, TC, etc.), in terms of smoothness, driving comfort, mileage, etc?

Autocar India team

Autocar India

Verified
7w
This question is often asked, and here is an easy explanation of its advantages and what to watch out for.
AMT (Automated Manual Transmission): This is the most basic type of automatic. It is essentially a manual gearbox with an automated clutch. It is the most affordable automatic and usually delivers good fuel efficiency, often close to that of a manual. However, shifts are noticeable and can feel jerky at low speeds. You will find this gearbox in affordable cars like the Maruti Suzuki Wagon R, Tata Punch, and Hyundai Exter.
Torque Converter Automatic (TC / AT): This is now commonly used in many mass-market cars like the Kylaq, Sierra, and Mahindra 7XO. It is the most consistently smooth and comfortable automatic. Gear shifts are seamless, especially in slow city traffic, making it very easy to drive. Modern torque converters have improved fuel efficiency, though they still trail the others in this regard.
CVT (Continuously Variable Transmission): This is the smoothest gearbox when it comes to city driving. CVTs don’t have fixed gears, which makes them very smooth in stop-start traffic. They are usually excellent for fuel efficiency, especially in the city. The downside is the “rubber band” effect under hard acceleration, where engine revs rise without a matching increase in speed. Overall, they are best for relaxed city driving.
DCT (Dual Clutch Transmission): This is best suited to drivers who enjoy performance and fast shifting action. DCTs offer quick gear shifts and feel sporty on open roads. They are also quite efficient. However, in heavy traffic, they can feel hesitant or jerky if not well calibrated, and long-term maintenance costs can be higher than those of other automatics.
Tata Sierra

Tata Sierra

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Hi everyone, I’m planning to buy a compact SUV automatic for city driving in Delhi NCR with occasional highway trips. I’m confused between the Mahindra XUV 3XO TGDi AT and the Skoda Kylaq Signature+ AT. My priorities are: smooth automatic for traffic, good ride comfort for NCR roads, reliable ownership and reasonable maintenance, and decent mileage. Would love to hear feedback from owners or experts on which would be the better long-term choice.

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Go for the Skoda Kylaq Signature+ AT. In Delhi traffic, it's automatic is very smooth, and the ride is mature on broken roads, and although not as supple as the Mahindra XUV 3XO, it is not a sore point. The 6-speed torque converter is known to be reliable and futureproof, as most torque converters are.For your stop‑and-go NCR commute, the Kylaq's calibration makes creeping and low‑speed shifts feel natural, reducing head‑nod in queues. You’ll also appreciate the 446‑litre boot on occasional highway trips. Ownership is predictable with 15,000 km/1‑year service intervals, and you can add an extended warranty (up to 6 years; confirm coverage in your city). Expect roughly 9kpl in Delhi traffic and 13kpl on relaxed highway runs at 90-100kph.The one thing you give up is the XUV 3XO TGDi’s stronger low‑end punch and overall power; the Kylaq AT feels calmer off the line and asks for kickdown for quick overtakes.If you prioritise a punchier engine and more rear seat space, consider the Mahindra XUV 3XO AX7 TGDi AT instead, but if that is not a high priority, the Kylaq is more enjoyable to drive.

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Hi team, I want to buy a 7-seater car. Need advice between Toyota HyCross GX (O), Tata Safari or Mahindra 7XO.

Autocar India team

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You should go for the Toyota Innova HyCross GX (O) if you want a true 7-seater with the roomiest third row of seats. The HyCross's 2,850 mm wheelbase and flat floor make the third row friendlier for adults than the Tata Safari or the Mahindra XUV 7XO. Furthermore, it's backed up by Toyota’s proven reliability and hassle-free ownership in India.However, you will have to compromise when it comes to the powertrain. The Hycross' 2.0-litre naturally aspirated petrol engine isn't as punchy as the Tata Safari and XUV 7XO's turbocharged units, and real-world mileage is quite poor, as we managed 6.9kpl in the city and 12.4kpl on the highway. The Toyota also doesn't get a diesel engine option like the other two.If you prioritise performance and high-end features, either the Safari or the Mahindra XUV 7XO makes more sense. As for pricing, the Innova HyCross GX (O) is priced between Rs 20.43 lakh and Rs 20.56 lakh (ex-showroom).

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Posted on: 24 Jan 2026