I considered the non turbo versions of both and ended up going with the 300ZX based on what I saw from the opinions and comments of previous owners on
http://carpoint.msn.com. It seems to me that one of the major issues surrounding a 3000GT for me was the unreliable nature (and the lack of non-turbo performance, though that's clearly not going to be a factor for you). With the comparable HP, how do the weights of the cars compare? How reliable do owners of the TT's say they are?
- Jeffrey