I've had some silly thoughts about doing something like this with flexible solar panels, but never bothered trying to work out a plan because at least half the panels wouldn't be getting sun at any given time. That said, it wouldn't be that hard to build something like this that's self-contained and only opens on the sun-facing side(s). Well, not hard but it'd take a while and would be a ridiculously expensive R&D phase for a "fun" personal project. Now I want to sketch it on index cards. Fun is, after all, in the eye of the beholder. Or something like that?
The idea of using solar panels to give electric cars a little extra boost is nothing new. In fact, the 2020 Hyundai Sonata Hybrid has a solar roof that