2007 2.5S Altima

The new 07 Altimas are now in dealerships and being a previous owner of a
1999 Altima GXE I am considering buying a 07 model so I took the 2.5S with
CVT out for a test drive.

The car itself is nicely appointed, this one had the S and SL package,
leather, sunroof, Bluetooth, automatic air.

What I found, which was somewhat disappointing, was the 2.5 engine was noisy
under acceleration, it had a pronounced 4 cylinder roar/growl, if you backed
off of the throttle the car itself was very quiet. I thought that it might
be just "that" car, so I went to another dealership and took another car
equipped the same way for a test drive. Same condition. I also took a 2006
Altima 2.5SL with the 4 speed automatic for a test drive to compare the 2
cars. The 2006 was definitely a quieter car.

The salesman acknowledged that the 07 Altima engine was somewhat noisier
than the 06 model but was not able to explain why. I am wondering if its to
do with the CVT, as this transmission allows the engine to "free rev" more
than a car equipped with a conventional transmission.

Anybody else taken a 2007 4 cylinder with CVT out for a test drive or owns
one, please post your impressions or experience.