For the first 2003.5s; they are offering Titanium and Yellow. The front has been changed, and of course, the loop rear wing. The wing, I could live with; but I don't like the new front cap. No fogs?! Why? It looks like an afterthought.
I think the shift knob now says MAZDASPEED on it, and someone mentioned they thought the wheels are a different shade for 2003.5. After that; the MAZDASPEED for 2003.5, is mechanically unchanged, from my understanding.