The rear end of the chassis should be sanded flat where the grille was removed. The photos will give you an idea what should be visible. Four triangular splitter strips were added to the underside of the chassis below the tail opening. The chassis plate and vertical strip is flat black and the exhausts are aluminum. If you really want to get in to it, the hood is held down with four red hood pins in silver mounts.
Interior color is white with black seat and dash and a red fire extinguisher bottle.
Wheel spokes are flat black while the outer rims are cast metal color - steel or magnesium. Both fender mirrors are red to match the decal color with silver mirror lenses. The passenger's side window has a NACA duct cut in to provide cockpit air. The illusion is pretty good even though there is no actual opening in the side window. There are, of course, limitations, but most of them can be overcome.