http://www.mbspy.com/211e60amg.htm
German car magazine "Auto Strassenverkehr" reports in July 2003:
The E 60 AMG is especially aimed at the BMW M5. It will roll onto the start next year with a roughly 500 PS strong six-litre V8 supercharged engine. It will have the new 7G-Tronic and in contrast to the BMW will also be available as station wagon as can be seen from the photo.
Text translated by MBSPY from excerpt of an article in "Auto Strassenverkehr"