I prefer my 350z over the early 8 231 i had a few years ago for several reasons. I loved the 8 when i had it, great fun all rounder and i never had any issues with it. It didn't use any oil like some have reported but i thought to myself if I'm paying for 19mpg, then i might as well get a more powerful car with more torque.
As previously mentioned the 370 is classes ahead of the 8 in terms of fitment, power and drive ability, some referring to it as a baby GTR. Write the check for the 370z-you won't be disappointed .