Actually funked, you are correct. The 300ZX preceded the 300Z. The 300Z was the first Z to use twin turbos, the previous turbo modeled Z's used single turbos.
Anywho, the 350Z is not much of a straight line performer, but shines on the curvy tracks. It's slower to speed, but does not need to slow down much. Excellent suspension and steering geometry combined with good weight balance allow the driver to push the envelope with confidence.