I could suggest to look at GTM-R cars for 'decent' design with some aerodynamic-tested shapes for inspiration. It was awarded 'Best Exterior Design' at last year's SEMA show. It has a lightweight tube-steel rolling chassis mated with a rear/mid-mounted V-8 but could see other engine/powertrain donors. Check their site for more info:
GTM Photogallery
Revenge shows new GTM-R ‘Super Car’ in Detroit - MotorAuthority - Car news, reviews, spy shots
Another inspiration (styling purposes) for great looking 'kit' car, power-mated with your Honda engines. Not pure aero because it is a roadster but an aero roof and aero studies could be added to the base. Pics of their racing coupe.
K-1 ENGINEERING - Fotogaléria