Hyundai Sonata Hybrid Review: The solar roof is really good for one thing

Hyundai offers a solar roof on the Sonata Hybrid sedan, though the promise of free driving courtesy of the sun isn’t really where the technology shines. The frugal family car eschews plug-in hybrid technology in favor of the altogether simpler pairing of a decent-sized gas engine and an electric motor that play together, though the solar cells embedded in the …