I had a verbal confirmation from my dealer today that in fact the S400 was able to pass emissions standards in the united states and that it is coming over for 2004! Imagine, a 200hp + diesel V8! In a Mercedes! Also coming is the 2004 S350, that is S350, not S320. Not to fear my diesel friends it is not a diesel. I believe it is a 3.7 litre V6 from chrysler, and it is gasoline. Not that nightmare of a motor from the early 90's. I can't wait until next year!