The smart locking system has been available since at least 2009. So that's nothing new. I am surprised the 2013 is only a 250hp engine at 3.5litres. the 2009 to 2012 are 3.5 @ 265hp.
Its 249hp only for russia, in the US it had 265hp until it was updated for 2011 and then you got 260hp until the end of that generation, the crosscabriolet always had the 5 extra horses.
Some european Muranos don´t have the AWD badge even if they are AWD, also, the AWD Lock button in european Muranos doesn´t say AWD Lock, they have 4WD Lock written on them.