I have seen the article; the proposed drawings on one of the front end shots was inspired by a Dick Teague rendition that would show up on the later AMC Matador sedans.
They even showed a few artist's conception on the future hardtop bodystyle, and the Colonnade concept. The Colonnade concept was thought up earlier by the engineers that were involved in the second-generation Corvair, which never saw the light of day.
Unfortunately, the Colonnade design was the final product, since the DOT mandates were becoming the norm of the automotive industry.
The frontend shots of the 1972 Chevelle (the one that never came, due to the GM strike) were stylish, but unfortunately, the bumper laws were passed to mandate the battering-ram bumpers seen today.
This is a good sign that Disco-Era Classics are being covered in literature, but these "ostracised" Chevelles and A-cars should become viable projects in the future, when the traditional 1964-72s reach the glass ceiling.
The Colonnade coupe might have been listed as one of the ugliest bodystyles produced, but here's the list:
Top 5 Automotive Eyesores:
1) 1974-78 AMC Matador Coupe
2) AMC Pacer
3) 1973-77 GM A-Car Colonnade Coupe
4) Ford Pinto
5) 1980-85 Cadillac Seville
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Weyoun X (the tenth clone)
descendant of a former Chevelle owner
http://www.angelfire.com/tx/lonestarclassics/acar.html
1969 Chevelle Memories Page
http://members.tripod.com/~seributra_d/time_and_memories.htm
Chevelles (and A-cars) On Screen
http://www.geocities.com/MotorCity/Downs/5196/a_car.html
Disco-Era Classics
http://homepages.go.com/~55498/hooptie.htm