Right? Even an mm shift in the pulley means there is a new gear ratio in play basically giving it an infinite ratio. However, the AMT turns out to be a bit more fuel efficient than the Venue’s DCT and delivers 11.2kmpl in the city and a lofty 18.6kmpl on the highway. The clutch disengaging happens automatically using hydraulic actuators. CVT has a pulley system. Maruti Suzuki sold over 6 lakh cars that were equipped with AMT. As per Hyundai salesman, IVT uses chain drive vs Honda’s belt drive. How Manual vs. Automatic Transmissions Work. 8/10/2020 को प्रकाशित . This process keeps on-going and this is how the dual-clutch transmission works. […] the brand new augmented driving system of Honda, the transmission adjustments from Manual to Automatic with only a change and options greater than eight modes starting from fully-autonomous to […], A very good topic it has enhanced my knowledge regarding transmission gears. The Mahindra XUV300 AT gets a six-speed AMT unit sourced from Marelli. automotive news and reviews. Compare the pros and cons of a CVT vs. automatic type of transmission and make the better choice for your needs. Absolutely! The mileage of this kind of gearbox is a very big strong point. Why? Go for DCT. By Shantonil Nag . All the points you have mentioned are true indeed. The gear shift quality is not always consistent. The speed at which sun gear rotates will be slower than what the planet gear rotates, in turn, making the ring gear rotate faster than the sun gear. Suggested For You: FWD vs RWD vs AWD vs 4WD | Car Drivetrains Explained. The disadvantage of this gearbox is that it does take a toll on fuel efficiency and there is a significant difference which can be seen in terms of mileage. And as there are no breaks in transmission it has better efficiency. The Maruti Suzuki Celerio was the first one in India to come with an AMT and the market accepted them with open arms. Maruti informs that AT includes a torque converter, Wet clutch system and a planetary gear system. CVT is soulless. The 2020 Chevrolet Corvette Stingray is an example of a transaxle DCT. There is nothing like the best transmission, it depends on what you want from your ride. Mahindra XUV300 AMT vs Maruti Suzuki Vitara Brezza AMT vs Hyundai Venue DCT vs Tata Nexon AMT vs Ford EcoSport AT: Specs. DCT is also the fastest and is used on high-end cars and racing cars. Basic understanding of gear is helpful here but I’ll cover it anyway. When you are in first gear, the computer has already readied the second clutch to engage the second gear, resulting in a seamless shift. Now, it is important to not that although you can differentiate gearboxes in these terms, but all manufacturers calibrate their gearboxes differently and two different cars having the same power and same kind of gearbox can feel different in terms of driving. Is it worth the cost? Manual vs iMT vs AMT vs DCT vs CVT vs Automatic Transmissions - Which to buy? Why … But first! Aswan | May 13, 2020 03:09 PM. In the pump, the fluid goes in one of the holes and is then ejected at the speed at which the engine is rotating, and for the case of the turbine, the fluid goes into the hole and pushes the turbine at a speed which the fluid was ejected in. Is the AT concept of Maruti is better than their CVT concept for driving comfirt. Only disadvantage is comparatively less fuel efficiency; even DCT shares this fault. If there is no gearbox in your car, the engine will run at a higher rpm for a long time thus reducing the engine’s life, increasing fuel consumption and maintenance cost. There are various subtypes within the Automatic CVT, AMT, DSG, DCT to name a few. People that prefer manual due to fuel efficiency can pick this up and be carefree. All the fields are required. Excellent article, I just wanted to check about maintenance of a DCT, is it really expensive as against others?? It is costlier and higher-end cars have it but it’s well worth it if you crave speed and smooth rides with a bit of fuel efficiency sprinkled in. The AMT is a low-cost transmission which is based on the manual transmission itself with a few additional equipment. VW Polo GT TSI and Skoda Rapid among others are some well-known names that use DCT technology. In some cases, not much! Competitors Duck Creek Technologies (NYSE:DCT) Vs. AMT, PLD, CCI, EQIX, PSA, and DLR. The gearbox is linear and you do get the advantage of fuel efficiency in this kind of gearbox but the shifts are a bit laggy. If you want the feel of gears changing and getting an output from the car and quick acceleration DCT is better than the rest. Different gear ratios are changed accordingly, costlier and higher-end cars have it but it’s well worth it. The torque converter cost about 1-1.5 lakh more than the manual and the DCT and CVT cost about 1.5 lakh rupees more. What is a gearbox? The rotation makes the pump push out fluid at high speed. Hope it helped. As I said earlier it is called planetary because it’s the same as what happens in the universe. Hi Anmol, A DCT might also have a negative impact when driving in hilly areas. Is it worth the cost? Bro you have just puzzled up the things a bit more… You should have said a one liner that… Out of three… This one is the best period…. They are also known as semi-automatic transmission. This flywheel rotates the entire structure. It really depends on where and how you drive. IVT is a subset of the CVT family and is totally worth going for the Hyundai Creta 1.5-litre IVT. I want to know vw polo GT uses DGT, Is this transmission is same as DCT or any difference? One path provides first, third, fifth and possibly seventh gears, while the other provides even-numbered ratios and reverse. You may also like: DCT vs CVT vs AMT | Choose The Best Transmission. The turbine is connected to the shaft which connects to the rest of the system. Engine Type: Smartstream G 1.2: 1.2 Turbocharged Revotron Engine: Displacement (CC) 1197 CC: 1199 CC: No Of Cylinder: 4: 3: Power: … The gear switch is so smooth that you will not feel a jerk while changing gears. If your car didn't have a transmission then it wouldn't move, but what is the difference between a manual transmission, an auto transmission, a gearbox, a dual-clutch transmission, a CVT transmission, a DCT transmission, a tiptronic transmission, a PDK transmission, a DSG transmission, an SMG transmission, an E-CVT transmission, or an AMT transmission? Difference between a typical Automatic Transmission and AMT. Sonet Nexon Brezza. We are here to decode the automobile for everyone so just stay tuned. We give you a complete analysis of it. Thank you for the article which has cleared many doubts. Checkout This Insane Maruti Suzuki Alto | The Fastest Alto in... 10 Precautions while buying a new/used car | Unlock 2 Special! Thank you for writing to us. Regarding your query, DSG is a type of DCT gearbox (Dual-Clutch Transmission) developed by Volkswagen. Mahindra XUV300 AMT vs Maruti Suzuki Vitara Brezza AMT vs Hyundai Venue DCT vs Tata Nexon AMT vs Ford EcoSport AT: Specs. Published: March 23, 2020 . This is the said normal kind of gearbox known as a torque converter which is seen on most automatic cars. DCT vs CVT vs AMT | Choose The Best Transmission. The Venue and the Nexon follow two separate approaches when it comes to tackling the sub-4m SUV space. Even an mm shift in the pulley means there is a new gear ratio in play basically giving it an infinite ratio. Nowadays, we are spoilt for choices when buying a new car. Allow me to explain an automatic gearbox in brief. Read More: Turbocharger Vs Supercharger | GoMechanic Basics. Check out all the details. If any better option, suggest me please. The very basic knowledge that everyone has that an automatic transmission changes gear automatically and doesn’t need a gear stick or clutch operation by the driver. By Shantonil Nag . Now the interesting part is that the dog clutch the next second gear is also engaged however it won’t rotate its own shaft because the clutch for it the second gear is not engaged ( there are two clutches, the main and the dog). Share. The DCT resembles, in effect, two concentrically arranged manual transmissions, each offering an alternative torque path and respectively accommodating sequential ratios and its own clutch unit. 10 International Spec Motorcycles We Would Love To Have In India. The gear shifts are jerky and not at all instantaneous. DCT is primarily used in the high-end luxury and performance cars. The engine goes of instantly when I start it.. By Shalender Kumar Last updated May 25, 2020. Absolutely! In some cases, not much! But ones I removed d plug connected to the injector it will start once and work well. But with that said, you might know that a slight change in driving style (especially shift lock in traffic jams) will bring the temperatures down. This will force the planet gear to both move and turn, as the ring gear can’t be moved. If you want the feel of gears changing and getting an output from the car and quick acceleration DCT is better than the rest. But whats the solution for heating issue in DCT engine? Fuel System Cleaner | Is It Worth Buying? The torque converter cost about 1-1.5 lakh more than the manual and the DCT and CVT cost about 1.5 lakh rupees more. It is even said that the Nasa’s Apollo 1 had lesser features as compared to the modern car. Automatic transmission on the Mahindra XUV300 is only available with the diesel engine -- a 1.5-litre turbocharged diesel engine that puts out 115 horses of power, a healthy 300 Nm of torque, and is mated to a six-speed AMT transmission. AGS is surely a good choice for city commutes due to its lower repair and maintenance cost, AGS is offered in a lot of cars nowadays. Actually nothing like a manual shift for real feel. The advantages are the driver comfort and efficiency. We help you choose the right type of gearbox according to your priority. to autoX daily newsletter *please enter your email-id. New Hyundai Santro To Get Cosmetic Upgrades, Tata Gravitas | Seven Seat Harrier Spied Before Auto Expo 2020 Launch, Second-Hand Motorcycle: 10 Things to Check Before Buying, How To Extract The Best Mileage From Your Turbo Petrol Car. And there are types of Automatic transmission which I’ll be explaining in depth. I’ll explain how it works below: Take the case of 6 gears DCT. Maintenance & Service. Now if two gears need to have same contact velocity that means if the size is uneven the smaller one will move faster. First, there’s the Conventional AT- also known as the Traditional Automatic Transmission is the primary type which employs a Hydraulic Fluid Coupler also known as a Torque Converter to put down power to the wheels. Also read: Mahindra XUV300 AMT vs Brezza AMT vs Venue DCT vs Nexon AMT vs EcoSport AT: Specs and Features Compared. Very detailed article. Thanks to the rising congestion and intensifying traffic on the roads, automatics are gaining popularity in India. AMT is the most successful automatic transmission system in India. The outermost side of a Torque Converter has the flywheel which is connected to the engine. Continuously Variable Transmission (CVT) Also known as a shiftless transmission, a CVT is typically comprised of a rubber or steel belt, running along varying diameter pulleys that take the place of gears. It is faster than CVT with almost no delay. There’s a baffling array of automatic gearboxes available on new cars. This fluid makes the turbine rotate. Hence still TC is the best type of gear box which gives overall balance. It is a bit on the heavier side as it has a lot of moving parts and gears. DCT, CVT, MT, AT, AMT – What Does It Mean? Remembering The Hero Honda Ambition | The Motorcycle With A Timeless Design, Honda To Exhibit Future Mobility at CES 2020. It has decent efficiency on its own but compared to CVT it lacks behind. For the latest. Also read: Maruti Suzuki Ignis AMT vs Nissan Micra CVT. Take, for example, deciding on the choice of the car transmission available. © The GoMechanic Blog | Brought to you with love by GoMechanic | 2020 | All Rights Reserved. Les premières boîtes de vitesses robotisées ont été conçues dès la Première Guerre mondiale et ne fonctionnaient qu'en mode manuel. What do you mean by output? Cars offered with DSG: Volkswagen Polo GT TSI, Skoda Rapid DSG, Ford Figo DCT, etc. Also Read: Bad Habits That Will Destroy Your Car Clutch. In the powertrain department, the Tata Nexon gets 118 bhp Petrol engine and 108 bhp Diesel engine, whereas the Kia Sonet comes in 2 Petrol 82, 118 bhp engines and 2 Diesel 99, 113 bhp engines. AMT is a good choice and is easily available as more of the entry-level cars have it and is cheaper compared to DCT and CVT. Similar Read: DCT vs CVT vs AMT | Choose The Best Transmission. Is the Torque Converter in use in cars such as Toyota in India? 19; 837; MotorOctane. But, every car has a permutation and combination of features and sometimes it gets a bit frustrating to understand what’s what and what’s not. Your days of hassle are almost over! Usually in cars around the 10 lakh range the AMT costs about 50,000-70,000 more expensive than the manual variant. Please I need help.. Am fed up with my skoda fabia 1.4vl 2008 model.. It’s killing me already after spending allot to mechanics yet no solution.. Well, fellas, I got something better for you. Insights. By: Vikram Chaudhary | New Delhi | Updated: Jul 16, 2018 1:18 AM. big news hyundai venue to introduce imt before kia sonet benefits vs amt explained dct dual clutch clutchless automatic manual clutch by wire i20 how it … So how does it work? But the choice is not only between an automatic and a manual gearbox. Think of it as a manual transmission controlled by a computer, but instead of one clutch, it has two. Which one should you buy? We give you … This allows for multiple velocities with only one possible input this is one of the possible cases. The fluid keeps on rotating in a counterclockwise direction separated in two sections and is kept rotating with the help of a stator in the middle. But no… You didnt. The search for a car usually begins with you seeing a new car advertisement and realising its something you might wanna get. Usually in cars around the 10 lakh range the AMT costs about 50,000-70,000 more expensive than the manual variant. CVT vs AMT gearbox. 4 types of automatic cars – CVT, AMT, DCT & Torque Converter: Which one should you buy? AMT Vs CVT Vs DSG: Automatic transmission-driven cars are slowly becoming more prevalent than manual variants in the Indian market. The pump and turbine have grates in them, holes if you may and these holes help with the movement. Hence, AMT cars are cheaper compared to other types of automatic cars. Well, worry not! As per maruti they use AT in this version. Basically, this kind of a gearbox uses two clutches; one for the even gears and one for the odd, and therefore the clutch is continuously engaged so that there will not be any kind of delay when it comes to the shifting of the gears. When the car starts and the engine is fired up, and the mode is shifted to drive mode, ECU engages gear one. Find below Which transmission option to buy in India in 2020. Automatic transmissions are gaining popularity in India, especially in the last decade when AMTs were introduced in the market. If you’re not too familiar with the mechanical workings of cars, you wouldn’t be faulted for not understanding the different kinds of acronyms that pop up whenever you look at a brochure or read an article. Hi Varun, Also the weight of all the gearboxes will be significantly heavier than the manual except the AMT. it could almost be considered a jack of all trades but being a bit on the costlier side it is not. Is it worth going for Creta 1.5L petrol IVT option..? Because it doesn’t give any output. Where two gears are connected they need to have the same speed as having uneven speed will destroy the gear system as the teeth will cross over. Dual-clutch transmissions are designed to be faster and more fuel-efficient than a conventional automatic, though that's not always the case. But once I put d plug back to d injector it won’t again.. The gear system is called a Planetary Gear system which consists of a gear in the middle called Sun Gear and three gears around it called planetary gears which are covered by a ring gear (thus the name). A dual-clutch transmission is a type of automatic. We still need to talk about the comparison of the subtypes of Automatic Transmission. What to expect? Fortunately, we can help you tell your CVT from your DSG Engine Type: Smartstream G 1.2: 1.2 Turbocharged Revotron Engine: Every transmission has its own advantages and disadvantages. But you do get the comfort of now having to continuously shift gears in traffic. Car News. This motor features no changes, … | The Technology Explained, SOHC & DOHC Difference | Overhead Cam Configuration Explained. If you don’t fully understand the difference between CVT and DCT, here’s a simple explanation. One correction, brezza is not AMT its torque convertor automatic.AMT vs dct vs torque convertor is a good puzzle to solve. Ever rev a car and feel the speed increasing, that moment when you shift the gear when the RPM is just right and the sound it makes. Find below Which transmission option to buy in India in 2020. The engine connects to a Torque Converter which is then connected to a gear system and then to the transmission. Well, the XUV300 AMT comes powered by the 1.5-litre four-cylinder turbocharged diesel motor. Well, firstly they are not the same. 2020 BMW G 310 R Video … Venturing deep into AT territory we see some more transmission sub-types . The Torque Converter transmission (I think it was called a Hydramatic by GM when first introduced) is not listed in the choice of transmissions. The DCT resembles, in effect, two concentrically arranged manual transmissions, each offering an alternative torque path and respectively accommodating sequential ratios and its own clutch unit. AMT Cars are Affordable; With less mechanical parts compared to CVT or DCT, the AMT is a lot cheaper to build and the benefit is passed on to the buyer. The gear shifts are very smooth and very quick as well. Four Types of Gearboxes – CVT vs AMT vs DCT vs Torque Convertor – What is Your Choice? This means the First clutch will act and the dog clutch on the first gear will engage. Check out the in-depth video of it. Excellent article. It is a kind of manual gearbox mechanically although it has a system that changes the gears for you. And your advice on below cars Before we delve into the types of automatic transmission we need to know how does an automatic transmission work, to get a better understanding of the different types. Maruti Suzuki Vitara … Stay Pinned! One of our executives will give you a call shortly and help you out with the problem. Manual vs iMT vs AMT vs DCT vs CVT vs Automatic Transmissions - Which to buy? All the transmissions have their pros and cons. Real-world game, 3D graphics and compute performance depends on several card parameters, including pixel fillrate, texture fillrate, memory bandwidth, as well as single- and double-precision performance. Stay pinned! One clutch operates the odd gears, (for example, 1,3,5,7) while the other clutch operates the even gears (2,4,6). Should you be buying DCT stock or one of its competitors? AMT is a good choice and is easily available as more of the entry-level cars have it and is cheaper compared to DCT and CVT. Published: March 23, 2020 . How Manual vs. Automatic Transmissions Work. Check out the in-depth video of it. it could almost be considered a jack of all trades but being a bit on the costlier side it is not. This led to the launch of a whole batch of AMT … Automatic (AMT) Cars in India: Sonet Vs Nexon – Which has a Better Engine Efficiency? » Compare GPUs » ASUS Radeon HD 7700 DirectCU Top (HD7770-DCT-1GD5) vs NVIDIA GeForce GTX 460. Advantages: Allows the engine to revv almost immediately; no lag is seen during quick acceleration like conventional AT's and MT's. It’s great to know that we were able to help you. So, let’s see how these two compare with each other. Manual vs iMT vs AMT vs DCT vs CVT vs Automatic Transmissions - Which to buy? Sonet Vs Nexon – Which has a Better Engine Efficiency? Automated Manual Transmission (AMT) Who should buy it? Even in an auto gearbox there are different types of gear systems such as an AMT, torque converter, CVT, AT and DCT that are available right now in different cars and in different price points. Anytime the plug for injector is in it… Some times does not start at all.. The biggest advantage is that these gearboxes are not that much more expensive than the manual ones and they also give better mileage than the torque converters. AMT vs CVT vs DSG Which is Better Pros and Cons Explained I. This is an automated manual transmission. Torque Converters Pressing a clutch disengages the engine from transmission allowing for a gear change and this process happens every time you change speed. DCTs … . Also, Read: 15 Things You Should Never Do to Your Automatic and Manual Car. Honda being belt-driven, has a slight lag before it takes the power to the wheels whereas the Verna being chain-driven feels more connected and the lag is minimal. The AMT has recently become widely popular in the Indian market, especially after the introduction of the transmission in affordable cars. Hence, AMT cars are cheaper compared to other types of automatic cars. Search for full or partial GPU model name: Theoretical performance comparison. So what does it have over others that make it cheaper? I am using Celario X AGS having a sudden jump while slow speed especially little slop or Hight places. The DCT gearboxes are also automated manuals in a sense but use two clutches and very comprehensive algorithms to make seamless shifts. Manual and Automatic. These transmissions share most of the hardware with manual transmission, … 0. - Carpost. Hi Jai, The TREMEC TR-9080 DCT used in the 2020 Chevrolet Corvette Stingray is an example of a traverse DCT, which integrates the differential with the transmission. This system is a continuously variable transmission.It has a sort of a rubber band effect and basically feels like one gear itself when you drive the car. Hi Abhishek, Then the search for other more interesting alternatives begin. Tata also provides the … Also the weight of all the gearboxes will be significantly heavier than the manual except the AMT. A DCT can be either a traditional longitudinal transmission, used in typical rear-wheel-drive cars, or a transaxle which is also referred to as a transverse transmission. This means the First clutch will act and the dog clutch on the first gear will engage. The DCTs and small engines don’t usually go hand in hand. I’ll try to help you out in your journey of buying a new car by explaining which automatic transmission is best suitable for you. Which one should you buy? With almost no delay in gear shift and less moving parts with almost no downtime, it has better efficiency than the other two systems and is a good choice some people might not like it as they require the car giving an output while they are driving to fully enjoy the experience. Q. I am confused between sonet dct and diesel amt. There are three major categories of automatic transmissions in road cars — torque convertor automatics, automated manual transmissions (AMT) , continuously variable transmissions (CVT) and dual clutch transmissions (DCT). As we have already covered the workings and details of automatic transmission multiple times let’s get straight into the fuel efficiency of each transmission. YouTube Channel. Compare the pros and cons of a CVT vs. automatic type of transmission and make the better choice for your needs. The energy is then transferred to the gear system. However, the AMT turns out to be a bit more fuel efficient than the Venue’s DCT and delivers 11.2kmpl in the city and a lofty 18.6kmpl on the highway. Keep up the good work. Even many affordable cars now offer advanced dual-clutch transmission too. An AMT gearbox costs almost half of what a conventional automatic would. Manual vs iMT vs AMT vs DCT vs CVT vs Automatic Transmissions - Which to buy? The CVT gearbox is expensive; in the case of the Elite i20, you have to pay Rs 1.05 lakh extra over a … Well, iMT is fairly new tech for India, so a comprehensive maintenance and service cost report for it would make sense after it’s gone through the test of time in our country. The clutch disengaging happens automatically using hydraulic actuators. Hi Kannan, Automated Manual Transmission. There are some cases as to how the gear system works. Tata … Even many affordable cars now offer advanced dual-clutch transmission too. Ganged vs Unganged: that actually doesn't have to do with single or dual channel. In comparison to a DCT gearbox, it’s almost 1/4 th the price! This is currently the best kind of gearbox that is available. Thank you very much, Dear Kartik Rangam for a lucid and wonderful explanation of an engineering stuff in a layman’s language. Alloy Wheels Vs Steel Wheels | GoMechanic Basics. Not my words but most motorheads consider it bad. Looks simple! Watch iMT vs DCT | All Geared Up | PowerDrift video including Exterior and Interior views, features and specification, Performance & Safety Parameters and other details of Kia Sonet Tags: AMT CVT DSG Torque converter. Suggested Read: Fuel System Cleaner | Is It Worth Buying? Stay Pinned and Happy Motoring! Stay tuned, an article on that is on its way. This could be a problem for enthusiasts as it is not very quick in terms of gear shifting. The CVT gearbox is expensive; in the case of the Elite i20, you have to pay Rs 1.05 lakh extra over a … There are few more cases but these two should be enough to help you get an understanding of how the system works. Rest nothing can be done to it. With a daily increase in traffic comes a … Now the thing is, the lag in either of the two is something you’ll not feel in day to day driving and only if you drive both the cars back to back, you’ll be able to notice the difference. Both of the CVT transmission has the same working principle. After the fluid is left with almost no energy of its own it goes to stator which pushes it towards the pump. Following are the pros and cons of each of them: CVT. Well, the XUV300 AMT comes powered by the 1.5-litre four-cylinder turbocharged diesel motor. AMT Cars are Affordable; With less mechanical parts compared to CVT or DCT, the AMT is a lot cheaper to build and the benefit is passed on to the buyer. Go for it! This is a major point in the working of the gear system. What is a gearbox? But if you use cars to get from point A to point B consider CVT. Yes, indeed DCT’s maintenance is a bit more than others. AMT vs DCT vs CVT vs AT – Types of Automatic Gearbox. The second possible case is when the ring gear stays stationary and the sun gear moves. Does it mean its the best of all three? subscribe. There are various subtypes within the Automatic CVT, AMT, DSG, DCT to name a few. The most important thing is that the car can quickly change gears and give in to your demand of instant power which is often not met with automatic gearboxes. A Torque Converters is a vital component of an automatic transmission. An infinitely variable transmission (IVT) is a continuously variable transmission with an infinite ratio range, which means that the transmission ratio may be zero wherea But if you use cars to get from point A to point B consider CVT. Your email address will not be published. if you crave speed and smooth rides with a bit of fuel efficiency sprinkled in. Hi, Hi, Also, Read: 15 Things You Should Never Do to Your Automatic and Manual Car. Depending on the speed of the crankshaft the pulley length changes changing the gear at the same time. Which one should you buy? It is even said that the Nasa’s Apollo 1 had lesser features as compared to the modern car. Actually not, it is one of the weaker systems and the only advantage it has over others is that it is cheaper. The gear shifts are relatively smoother but it does miss out on a bit of performance from the petrol if compared to a manual or a DCT. , Content Writer at GoMechanic | Loves Writing | Loves Cars | You know where this is heading | Level 12 Meme Lord | EVolution. These parts in combination make an automatic transmission. One clutch controls the even gears, and the other controls the odd gears. Following are technical descriptions of the four basic types that have been used of late, but if you prefer to simply know how they might affect the driving experience, just skip down to the “On the Road” section. By: Vikram Chaudhary | New Delhi | Updated: Jul 16, 2018 1:18 AM. Question about Manual vs. iMT vs. AMT vs. DCT vs. CVT vs. Automatic Transmission answered here. For your second query, we would suggest you to go for the Kia Sonet, which is offered with 3 engine options and a 7-speed DCT automatic gearbox. Now there are two types of transmission systems. It is good article as an overview for those who have no engineering and physics background. Here, Watch my YouTube Video https://youtu.be/mcTPEEgZcVs AT - AT is just a moniker for a automatic transmission with a torque convertor.