First of all, I have not driven either car, so take my opinion like a grain of salt. If you’re going to be getting into autocross, roadcourses, whatever, the S2000 is probably more so the car for you. If this was my decision I’d pick the 350z simply because i can’t fucking stand narrow powerbands, plus cruising on the highway in the S2000 has got to get annoying after a while. But as others said, you’re going to have to take both for a test drive and see which fits you better. It’s a lot of money to be spending either way, so make sure you get the one that you’ll enjoy more.
Oh and my vote…350Z droptop 