Here's a Photoshop concept (Probe-like)to start ideas. Your fastback (almost bought one) is the most attractive of all the types. There are hundreds of kits for the 240/140/Silvia model. I hacked a full widebody kit to create an aero one. I used it to cover the tire track widths on the front & rear from sticking out of the body contours. The front wells are open but have gentle front-edge fences. I love the look of lightweight forged wheels so I created lightweight lexan covers. I know the problems from brake dust, so use brake dust covers. The rear wheel wells are completely covered. Wiper fence, low-profile side mirrors and flat HID light conversions. I still kept a small open (adjustable apertures) grill opening for some intake & cooling use. Rear wing deletion but added tail length all the way to the rear bumper line. Full belly pan & rear diffuser to finish.
