Who has driven the 04 S2k at the limit here? No one.
Its not better or worse then the 03 because you don't know.
Its obviously a bit different car.

If you that are insecure about your S2k not being good as the 04 just go buy a damn 04
If you dont, then just be happy that you got the good one
The s2000 wasn't supposed to be this way or the that way