Hello all, 

I am interested in designing my own car and about 3 weeks ago, I decided to start learning basic designs on Fusion 360 simply because it cost zero dollars. Given that I had never designed anything before using any computer design programs, I would like you to rate for me this car that I designed. Do not feel bad pointing mistakes because that is how I learn the best. Your genuine criticisms are highly encouraged. 

if you want to build anything that looks semi  professional then the tooling costs can easily be in the 200k upwards and thats if you have a base vehicle to start from.
If you have a chassis then you can always build up wooden 2d profiles and fill them with foam and sand back and seal the bodywork to take tooling from and then produce parts. This would be a lot cheaper but would involve a lot of man hours.