The Alfa Romeo was in an exhibition of Italian cars in Torino last year.
http://www.flickr.com/photos/39749410@N00/2428523521/
Regarding the Gebhardt, Momo ran a car called the "C901" with an Audi Turbo in IMSA in 1991, while Gebhardt ran a Ford-powered "C91" in the SWC in 1992. Are these the same car?