http://g4tv.com/videos/43026/Exclusive-Brink-An-Objective-Perspective-Container-City-Pt1/?quality=hd
The debate about whether KZ2 is possible on 360 just ended imo. You can argue maybe that in some ways KZ2 looks a little better ( then again, it had a MUCH higher development budget) but unless you're just a fanboy imo, you cant argue that Brink isn't coming very close.
YT link: http://www.youtube.com/watch?v=F6RqVpp-ZJI