You know, at first I said this is a stupid youtuber stunt, probably dangerous, and definitely wasteful. But, if it could fold up like that then I see no reason it couldnt be designed into a areodynamic fairing, and its a surprising amount of solar coverage. All in all, I would never put this on my car, even if I was paid; but, it could be done very professionally, its significantly less impractical than I was expecting (though not totally), and the most important part is people <i>want</i> it.