That screen you posted from Rage doesn't look better than KZ2, to me. It only has one character, and a really insignificant background. I'd even be surprised if it was taken from the 360 version, especially since Rage is cross-platform with the PC, 360, Mac, and PS3.
I think you're dreamin', if you believe a crossplat will ever look better than KZ2 on the PS3 or the 360. If/when the 360 catches up, it'll be an exclusive for sure.
btw, that's a PC shot you posted, and frankly... it looks like it spent some time in Mr. Photoshop. Notice the guy behind, not quite in sync with the environment... something a little... wrong.. with the way he's running, doncha think? Lighting just a tad different between the two characters, the strange fuzzyness (not motion blur) around the back guy... I can smell Photoshop from a mile away.
http://www.shacknews.com/screenshots.x?gallery=10444&game_id=4598&id=123915#img123915
