A friend on one of my heart-surgery-related message boards sent me information about a 1978 Monte Carlo in the lobby of the Chicago History Museum, and I posted it on the 3rd gen MC (1978, 1979, 1980) Forum...
I added some info to the post on the 3rd gen MC (1978, 1979, 1980) Forum:
Chicago History Museum...
http://www.chicagohs.org/
The 1978 MC lowrider is under the "Treasures" exhibit, listed at the bottom of this page...
http://chicagohistory.org/planavisit/exhibitions
Treasures ... This series of building-wide installations promises to surprise you from the moment you step in the door. Highlights include a 1978 Monte Carlo lowrider, souvenirs from Chicago's world's fairs, and Abraham Lincoln's deathbed.
CHM 1978 MC lowrider video...
http://www.youtube.com/watch?v=RrO5SLLxQXk
PIC on the CHM website...
Cort | 37.m.IL.pigValve.pacemaker | 5 Monte Carlos + 1 Caprice Classic | * meet_04.16.11_Dwight.IL *