I will prefer manual transmision. Total control (abuse) of the
car. Can play with free wheeling also as well as launch. As well as
skipping gears during down shifting.
As for clutchless transmission, layman call it clutchless
because there is no clutch pedal.
In technical details, BMW's SMG & Lambo's E-Gear is in a
class of it's own because it is still a conventional single clutch
gearbox except that the shifting mechanism works on a electro
hydraulic system.
For Alfa's selespeed, it is still an normal torque convertor
based automatic gearbox except for the steptronic function. Subaru,
Toyota & most other Japanese makes uses this system because
they have yet to develop a dual clutch system. This explains for
the jerky feel in the shifting. Except that Lexus have the system
so refined that they do not need to develop a clutch based
automatic transmission system.
Lastly, the infamous dual clutch system. Volkswagen is the 1st
carmaker to incorporate this system & they call it DSG. It is a
double clutch system where the odd number gears are connected to
one clutch & the even number gears are connected to another
clutch. This explains why the shifting takes 0.5 seconds &
below. Up to date. this is the most advanced transmission
system.
After Volkwagen's DSG. Audi came out with Sport-Tronic, Porsche
came out with PDK, BMW came out DCT. Nissan used this system on
GTR35. Mitsubishi used this on EvoX & they call it SST. So far
other Japanese carmakers have yet to catch up with them.
Hope that you're not confused with all these technical mumbo
jumbo.
