*VW XL-1 Cd 0.189
*Schl'o'rwagen Cd 0.186
*GM Chevy Citation-IV Cd 0.186
*Renault Vesta II Cd 0.18
*Railton Mobil Special Cd 0.18
*Volkart Sagitta Cd 0.17
*JCB Dieselmax Cd 0.17 (full-scale)
*AeroCivic Cd 0.17 (estimated)
*Daihatsu UFE-III Cd 0.163
*GM Precept Cd 0.163
*GM Impact/EV1 LSR record car Cd 0.14
*CUER Cd 0.10
--------------------------------------------------------------------------
Goro Tamai,who used to head the solar race team at MIT claims that wheel fairings can reduce wheel drag by 80%.
It may be that Mike's wheel treatment on AeroCivic over-compensates for concessions he had to make to other parts of the car,so as not to tear them off the car in traffic,and when ascending/descending parking ramps.
Cd 0.17 doesn't seem an inappropriate value to assign to a car with AeroCivic's mpg and coasting performance.