Click image to enlarge Image: Aero Civic
Cd reduced from 0.34 to 0.17 Image: Aero Civic
1992 Honda Civic gets a boat tail Image: Aero Civic
It might look ugly but this 1992 Honda Civic has double the fuel mileage of a standard Civic simply by lowering the coefficient of drag (Cd) from 0.34 to 0.17 with a little engineering savvy and $400 worth of material bought the local hardware store. In fact the drag on this 350,000 miles (563,270 km) old Civic has been reduced to the point where it is virtually equal to the radical tear drop shaped Aptera which has a Cd of 0.15.
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