I think all S4 spiders are veloces (at least in the US).
The major differences are the phone dial wheels, a/c, and the leather seats with "suede" (alcantara) inserts. (Maybe power mirrors too?)
My 92 did not have the top boot when I bought it, I ended up buying a black leather top boot (ebay) that is designed for earlier spiders. I like the way it looks and its a lot less "fussy" than the big one that was original on the S4. Remember that you have to take the boot off every time you want to raise the top, it can get to be a PIA after a while.