With the onset of so many AT (and other derived technologies, like AMT) cars in Indian market, one of the question that comes to the mind of a perspective buyer is, which one should I chose and why? Also, is the cost differential worth the comfort or improvements I'll end up getting?
Before we answer that question, let's take a quick look at the two technologies and understand the pros & cons of both
What we are also seeing are some midway solutions, which provide the comfort of "AT" at a cost, closer to Manual transmission.
Automatic Manual Transmission - Manual transmission car in which the operation of the clutch and the gear changing is done automatically with the help of a computerized electro-hydraulic mechanism An AMT car will not have a clutch (clutch function is electronically controlled) and the gear lever will only have the options of Neutral, Reverse and Forward. There is also the control to upshift or downshift the gear manually with the +/- option.
Automatic Manual Transmission -
Other transmission system includes Dual Clutch Transmission (DCT) and Continuous Variable Transmission (CVT)
Dual Clutch Transmission (DCT)
DCT has two separate gearboxes with each one having its own clutch. Clutch '1' is connected to the odd numbered gears 1, 3, 5 and 7 and clutch '2' is connected the even gears 2, 4 and 6
- Car doesn't slow down between gear shifts, steady acceleration of the car starting from standstill
- Improves the mileage of the car and gives more Kilometers per Liter, better than that of a manual car
- Expensive, so only seen in premium or luxury cars
Continuous Variable Transmission (CVT)
CVTdoes not have gears at all. The gear reduction in this case is with a set of belt drives. CVT is one of the best types of Automatic gear transmission system for a car and gives better fuel mileage than other automatic transmissions. In fact the fuel economy in a CVT automatic car is better than same model manual cars.
Downside, again being more expensive to purchase and own