91 Caprice
Early development, but since it was based on the sedan the front end should be the same.
Page nine of this interesting read:
http://autosofinterest.com/2014/11/1...rolet-caprice/
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The full-size station wagon model that was also done in Chevrolet #2 Studio. We had to roll the plan view of the rear glass in toward the center of the car for aero. The car had so much space that utility was not much of a problem.
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Regarding the 1976-1990 Caprice vs. the 1992-1996 model
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The aerodynamic drag on the old car was something like 0.485 [Cd]; the new car ended up at 0.325. (The Coefficient of Drag multiplied by the Area, in front view, is the true aerodynamic performance value; the CDA.) With a slightly smaller frontal area the resultant improvement in fuel economy was dramatic
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