Body is Monogram Fire bug, shortened the length of the side door and angle sectioned.  Rear pan is an old Ford GT.  Rear door is the original side door.  Front spoiler is Porsche 935/78 with early '80s Mustang headlights molded to it.  Wing is from an Indy car painted to look like red anodized aluminum. 

 

Chassis tub is widened and shortened Ford GT along with the 4-cam Indy engine, all from an old Testors kit.  Wheels are parts box with tires turned on a lathe.  The body hinges on the original pivot points at the rear of the GT tub.

 

Interior uses Porsche seats and fabric upholstery.

 

Paint is Schwinn bicycle paint airbrushed over a blend of black, silver and white pearl.