The street version of the S7 ceased production at the end of the 2007 model year, in part because of the mandated air bag requirement and the engineering and certification expense involved to meet that requirement.
What the future holds for the S7 street version remains to be seen, but the S7R models are available if you want to go racing.
But don't panic, there are probably a few new S7 models available in showrooms if you were searching for one, but I did recently meet a gentleman who bought one of the last ones built.
Printable Version
Sound of an S7 - 
You should have seen the hits to this thread when I posted it. 