I test drove a mk1 TT before I bought the 350Z... I also test drove: Porsche Boxster S, Mazda RX-8, Alfa Romeo Brera, Honda S2000 and BMW M3 (E46). I gotta say that the closest any of them came to the 350Z in my opinion was the S2000 or the E46 M3, but the Zed had me grinning from ear to ear.
In my opinion, there should be no doubt in your mind.
My advice is to take a look in the For Sale section on here... some cracking cars up for grabs!