ya, the front park assist mainly only works for front/side objects... i tested it out too for directly in front and it didnt go off for me... if you look at the sensors, there isnt one in the middle, just on the sides of the front bumper. i didn't get the ml sound system on mine and think it sounds great (was thinking of getting it but my cousin told me the difference between the ml and non didn't warrant the increase in price). i guess it would have been cool to be able to watch a dvd with the ml system tho. great list!