1. doess the interior only come in black?

2. it the sports suspension the same suspension as the S5?

3. the brochure says it has an s-line front grille, but it looks the same as the regular A5 grille on the European model. Will this be unique to for the US?

1. Yes

2. Good question. Have never seen a straight answer on that.

3. I think the air dam/foglight areas are more the difference than the center grill which is not chromed like the S5, whether S-Line or not.

I guess I can't blame them, as in the past some of the s-line models have looked better than the actual S models.

I'm not seeing much difference. Look at the photos in post #3<ul><li><a href="http://www.a5oc.com/forums/showthread.php/audi-a5-vs-866/index.html">here</a></li></ul>