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Aspire
Aero,I found my piece on the Aspire.It is so close to the CRX with exception of the rear hatch which isn't as steep.My car was advertised at Cd 0.32 but registered only Cd 0.35 in a better wind tunnel.Your Aspire is Cd 0.36,and that's a yaw-averaged Cd.It should be a very conservative number.
The belly will help.The diffuser will help but it won't function until everything upstream is clean.So I would recommend you start at the nose and work back.
Here are some things I did to the CRX which would lend themselves to the Aspire:
* wrap-around nose/airdam with flexible chin and built-in grille block.Plex covered headlamps and signals.
* rocker panel extensions to get sides even with sides of tires and guide air down the sides.
* Full-coverage rear wheel skirts
* Full dish wheel covers
* bellypan ( I just added panels where Honda didn't have 'em )
* Rear hatch header wing/C-pillar buttress extension out to new tail
* 12-inch boat tail with electrical umbilical for integral trailer lights built in.
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The kit pushed the top speed from 93,to 100 mph at sea-level.
Mpg went from 52.2 mpg @ 55 mph,to 60.6 mpg at same velocity.
Highest one-way run went from 62 mpg,to 82 mpg,over a 345,000 mile database.
Drag coefficient dropped from Cd 0.35,to 0.235
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I think a 'kit' could do exactly the same for your car.And you could take it further! Really 'basjoos it.'
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