I think you should of compared the Infiniti G35 to the RX-8 since the 350Z is only a two seater. That's why I think it's hard to choose between the two. That and I have never test driven either cars.
In my opinion, I like the 350Z and G35 better because both the 350Z and G35 have more horspower and torque at lower rpms plus both the 350Z and G35 have better fuel economy then the RX-8.
But, I think the RX-8 would be a great track car because of its rigid design, engine layout, and light weight. I would definitly own an RX-8 because its unique and has 50/50 weight distribution with rear wheel drive which means a potential drifting vehicle.
One more thing, the 350Z's brother, the G35, is now being known as the new Skyline, so you could say the G35 is closest thing we have to a Skyline GT-S. Just wait for the Infiniti G35 GT-R which will be the closest thing to a Skline GT-R here in the states.
I don't think it will be called the G35 GT-R, but the new Infiniti GTR is rumored to have a DOHC 3.5 V8 with 4 wheel drive.
Here's some info:
http://freespace.virgin.net/joss.ell...R35_Specs.html
