need to replace my 330ci next spring, would like a 335ci but don't know if i can wait for it, thinking about another 330ci to keep maybe just a couple of years until the 335 or even m3 are available but am also considering a 350z, i had a '91 300zx twin-turbo and loved it, any thoughts on the 330ci vs. the 350z strictly in terms of fun to drive (back-seat not an issue).