 I bought this car 5 months ago and I 
have had numerous problems with it.  It 
has been to the dealership at least 10 
times.  Issues include failed power 
windows (passenger and driver side), 
rattling vents (one actually pooped 
out), squeaking sound from rear hatch 
and vibrating rear view mirror.
 The extra $$$$ you pay for the 
supposedly great Infiniti dealership 
and headquarters service is a sham.
 I have told all that would listen to 
stay clear from this brand until they 
get their act together. 
 If you want service get a Lexus.
If you want performance get a BMW.
If you need the room get the Acura.
 Stay clear of the QX4.