normal. dude do more tests.

drive the car... ok. I mean really slow... turn the wheel far  left.
then slam on the breaks.

if you hear a knock like a free game on a pinball machine that means the arm
on the right wheel needs adjusting or even changing. a lot of z's have this
problem. if you see grease on the windows... that is a nother problem.

back bumpers sometimes has worn away foam... which makes the bumper rattle
at high speeds... look right under neath the exhaust. or tap the bumper. if
it rattles... like a "bbbrrraaahhhh" that needs fixing

make sure you get your mesh protector for the trunk.

now something's all z's have that is not really a error just something they
need to work on.
arm rest door will pop open when your driving... watch for that.
the seat belts go back way too fast.. almost sounds like they are going to
break the glass...
what happens is it will hit the door and leave pits in the door. when you
open the door and look at it in the sun on a angle you can see the dents.

Cup holder at times on a few Z's gets stuck.
only the weirdest shades can fit in the eye glass holder.

to open your trunk.. there is a button above the license plate...

I suggest you change your grill ASAP since the z has a huge bumper... rocks
and the whole world goes flinging in there.
that is the first thing you should do.

The roaring tire noise you hear when decelerating is more than likely due to
tire feathering, or uneven wear. There is a Nissan TSB (technical service
bulletin) for this, so hopefully the car is still under warranty.

A fix for this problem supposedly was included on the very latest 2003
models and the 2004s. Mine was build in March '03 but is showing signs of it
at 3500 miles.

Mark

I just watched the PBS show, Motorweek or whatever and they had tire noise
problems with their long term 350Z and changed the tires to another brand
and the problem went away. Sounded like a common problem.