What I find interesting is that the latter 2 pix are attributed to being the "Epcot Car"; that is, the car that was displayed at the Epcot Center. The (silver colored) GM Aero 2000 (pictured and discussed in the thread
http://ecomodder.com/forum/showthrea...3-a-13916.html) is also attributed to being the Epcot Car. However, in the advertisement above, I can make out the text "GM Aero 2002". The design features look very much like the GM Aero 2000 (particularly the half skirts over both front and rear wheels). Maybe the Citation IV was actually a distinct separate vehicle?