I came from an 05 350z. (Seems like alot of people here have
)
The 370z drives like a sports car, the 350z looks like a sports car.
The 370 is much more powerful and a better handling car (stock compared to stock). The 7AT is a huge upgrade over the 350 AT.
One negative is the throttle is weird in the 370, feels overly stiff and has an annoying delay. The 370 has more road noise in rear wheel wells, but is sealed better (at the windows) and not as creaky as the 350.
Much nicer interior, although I do miss the eyeglass holder. Also the 350 had those cool through the wiper window washers and individual tire pressure readouts. But this stuff is easily forgotten. The loss of the rear window wiper is a plus as far as I'm concerned.
I always hated the tear drop bubble shape in the 350's design at the cockpit which the 370 removes. Nice!