My wife's 2013 XC60 T6: It is not smooth. I will try and explain. When coming to a stop and the transmission is downshifting then accelerate slightly, it seems to get caught between gears. It acts as if the clutch, if it were a MT, is held in too long so the car jerks forward. Her 3.2 S80 trans did this and that is why we traded it. Is this a software problem? I hope I have explained enough for it to be understandable. Thanks in advance.