I don't think the GT looks dated at all. In fact since returning to a Z (GT) having owned two GTs and a Mk1 Nismo in the past, I have come to appreciate the less shouty look of the GT more. Perhaps it's because I'm knocking 50 and I'm getting boring in my old age, but in the right colour, I actually prefer the GT - it looks good, but not like it's trying too hard to look sporty.