This stunning, American-made plug-in hybrid is powered by its solar-panel roof

Don't call it a comeback; the Karma has been here for years. On Thursday morning, the fledgling Southern California-based carmaker Karma Automotive revealed the first photo of its "new" model, the Revero. Along with swoop-y body lines and four doors, the Revero features a plug-in hybrid powertrain as well as a solar-panel roof that supplies power to its onboard batteries — a first for the American market. SEE ALSO: Audi's new suspension turns rough roads into electricity and saves fuel Now