Quote:
Originally Posted by vladislav
8 speed auto is trying so hard to shift faster than DCT that it even farts on the shifts  . |
That "farting" noise is the BMW anti-lag feature maintaining boost while the throttle is reduced for the gear change and has nothing to do with the transmission. The F10 had it too but was less pronounced probably due to the faster gear changing of the MDCT.
All things being equal, if the automatic changes gears slower than MDCT (which it will), then the car has to "fart" longer and louder to maintain boost while changing gears.