Regulations for your racer say that car body must be made in one piece using CAD and CNC while only the wings are to be added later. If you'd go into bargeboards, ears, endplates and other things that would require that all of those elements to be designed using CAD simultaneously with car body (as integral parts) and later produced using CNC which would be very complicated to achieve (unless you're using that secret TIP I've PM to youmjmurphy wrote:Ok, well do the endplates reduce drag? Also, if I am going to make a cockpit, should I use something similar to the front 'ears' used on the Renault R25 to provide better airflow management around the cockpit area? Also should I use front barge boards like those on the Ferrari F2005 so that the air that passes through the front wing is diverted under and outside the chassis to increase the efficiency of the bottom of the car? Also, will the shape of the bottom of the car influence drag? Also, should the rear wing be placed as low and far back as possible or opposite? And should I use rear-wing endplates like those on the Renault R24? Another thing, should I use front axle barge boards like those on the Ferrari F2004? It seems like airflow management will play a vital role in drag....
).Some of those elements you mentioned are used for simply for aero(no downforce, or cooling) but great majority of them considers speeds 4-5 times greater that what these racers make. Additionally, since only the front and rear wing can be added afterwards/separately, regulations would prevent you from adding bargeboards and all other "out of the body" aero elements.
That is why the best option is to make car resembling to F1 from the ‘80s or early ‘90s where there weren’t that many additional aero elements fixed on cars body and you’d have sidepods big enough to pass the regulations. You can make more modern car too but without making all of the mentioned additions.