Drag coeficient
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Join Date: Feb 2004
Location: Foley, Alabama-southern Alabama
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Co-efficiency is measured by the frontal square footage as you look at the front of the car,mostly front bumper-grill,windsheild,bottom tread of front tires,front spoiler,front edge of roof on the car,etc.They take this square footage measurement and then they wind test the car to see how much drag it has it then divided with a certain formula to come up with co-efficiency number.