Below is a link to a little project that was started to catalog the United States RS4's. There are over 400 cars listed so far. I have had lots of help from AudiWorld members and thought I would see if I missed anyone on some of the other Audi forums.

RS4 Registry

 

Time well spent! Thanks again for your efforts.

 

This is awesome - any idea what % is up there?

 

This is all just a semi-educated guess...

Audi has stated the 2007-2008 production will be 1000 cars per year, perhaps more if demand is higher than anticipated. Using that as a guide, we have almost half of the 2007 production run listed and we are still in September of 2006.

I would guess that we have about 75-85% of the U.S. RS4's manufactured and/or delivered. Many of the cars on the list have not yet been delivered.