The Kia Optima PHEV is the most sophisticated version of the company's mid-size sedan. Building on the Optima Hybrid
, the PHEV adds plug-in functionality for some EV driving. Like all Optima
variants, the PHEV has a well-done, if simple, interior with plenty of useful space, and while this nicely sorted sedan is more pleasant to drive than sporty, the option to go all-electric makes this the refinement champ of the Optima range.