One day (time permitting) I really want to try to build a very small personal solar powered EV. Just for the hell of it. Not really practical at all more of a "because I can" kind of thing. Though, some fun little kit-car's could be interesting too though. Archive: https://archive.today/Kp0y7 From the post: >>Car design is an iterative and proprietary process. Carmakers can spend several years on the design phase for a car, tweaking 3D forms in simulations before building out the most promising designs for physical testing. The details and specs of these tests, including the aerodynamics of a given car design, are typically not made public. Significant advances in performance, such as in fuel efficiency or electric vehicle range, can therefore be slow and siloed from company to company.