In my 2009 Xterra (A/T) when I would "manually shift", shift it say from D to 3rd...it would "blip" the throttle to bring the engine rpm's up to match the gear change.
I am not the only one who noticed this:
http://www.clubfrontier.org/forums/f8/downshift-rev-matching-auto-60092/
And from the 350Z info: Electronically controlled, driver-adaptive automatic shifting that learns the way you drive and adjusts accordingly. Put it into manual mode for sequentially selected manual gearshifts and experience our new Downshift Rev Matching technology, which automatically opens the throttle when downshifting to match the rpm, resulting in smoother gear changes
So to say that rev matching is only for manual trans, is not correct in this day and age. Most new(er) A/T performance vehicles....Camaro, Charger/Challenger, Mustange, 370Z, etc., feature rev/throttle blip or rev matching.
So back to my OP...at some point Nissan change/did away with this feature in the Xterra and or Frontier and I was just curious if anyone New when.
But I guess if you only owned a rig that did not do it, you would not know any different.