What you wouldn’t want a wing made of muslin fabric and spruce/ash wood on your Ferrari? The Wright brothers were ahead of their time with those control effectors. All these years later and we’re still trying to match it with smart materials and flexible skins. Current mechanical systems are heavy and complex, and a lot of claptrap to carry around on aircraft. So in the future, expect us to go back to more of a Wright approach, minus the fabric and wood.
By belly pan, you mean one that extends to back under the engine? That would dramatically reduce cooling of the engine and exhaust (cats) system. From the firewall forward, the underside is pretty flat. A HUGE amount of air is sucked up from the ground, across the motor and out thru the deck grill. I found this out when had do drive over a dusty road that had a fine dust layer from construction, and the dust plume that exited the deck grill was impressive. The dust plume looked like an old steam locomotive belching smoke and I could see a thing out the rear window. Doug
Let's not forget that these were (are) street cars from the 70s and 80s. Aerodynamics wasn't a primary issue for any street car or truck back then. It was about style. Even then, the underside of a 308 is a lot cleaner than most cars of that time period. Image Unavailable, Please Login Compare to an E30 BMW. Image Unavailable, Please Login It really wasn't until the 355 that Ferrari started to consider the underside of the car for performance.
There was an aftermarket (Hamann) version made for the 512TR: https://www.ebay.com/itm/202772532705?_trkparms=amclksrc%3DITM%26aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160811114145%26meid%3D470d8d98c8f84b5cbc4313972ab9c4e0%26pid%3D100667%26rk%3D1%26rkt%3D8%26sd%3D202772532705%26itm%3D202772532705%26pmt%3D0%26noa%3D1%26pg%3D2334524&_trksid=p2334524.c100667.m2042&mkevt=1&mkcid=1&mkrid=711-53200-19255-0&campid=5336838664&toolid=10001&customid=l5wuasaiv3000k3x00004