I kind of liked Top Gear's recent assessment of the new 370Z (having not driven one myself, my own opinion is limited to the fact that I think it looks oddly stubby and short)...
"If the 350Z was hairy-chested, the 370 definitely moisturizes. There's a great chassis lurking underneath the new metrosexual veneer, but elsewhere it's gone soft. The Stig quite likes it, but nominates it as a good car for your girlfriend."
Aha! So it's a chick car! Miata-owners have new competition I guess.
They also say, "The Nissan's stability control doesn't turn off completely either, and there's a slightly synthetic feel to it that the old one didn't suffer from."
I really liked driving the 350Z. Especially listening to it when putting my foot down on the loud pedal.