Originally Posted by sycd
Actually the M135i which has the new 8 speed is getting some good reviews, its performance seems to be similar to DCT. It might be that the next generation of automatics will be good enough for these cars, and DCT will remain a small niche.
See also this good recent piece from Chris Harris:
I would agree only if the manufacturers can somehow do away with the conventional power-eating torque converter. Seems like they are working on the idea right now, so essentially a hybrid between DCT and conventional automatic transmission. Maybe a wet-clutch type torque converter instead of fluid type?
Other than that, it still boils down to cost, supply and demand that dictates the wide availabiliy of the transmission type.