This according to Autospies.com:
"Almost as fast as it came the Audi RS6 will disappear into the sunset.
The Spies have learned there will be no 2004 RS6's. The 2003 model will be the last of the breed in the current body style.
And belive it or not, there are still quite a few out there across the country still for sale in dealerships...So much for "If you build it, they will come".
We'll all have to wait until the next generation car appears sometime in 2006".
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I wonder if the new E55 had anything to do with this?