I respect your intension of this subject and it is clear you are still an amateur. However, there are many guys studied already drawing and painting in engineering and art faculties, they already designed many vehicles and showed them in automotive fairs in Egypt such as Automac Akhbar El Youm and Al Ahram Formula
I am not sure if they designed them taking aerodynamics concepts into account, but in general it was good effort
Designing a car, of course, includes many professions. If we are just thinking to design the exterior of the car (and perhaps the interior also afterwards), we need more mechanical and materials engineers to take care about the aerodynamics and other aspects related to the car exterior design. They shall enhance the graphs into real applicable designs
From my point of view, it is highly possible and not very expensive. I am sure we have engineering, art, and graphics skills and candidates who can let this dream comes true. As I mentioned, there are already some efforts in this direction but they need more support
I hope there are some of them in the forum who can share with us their experience
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