2016 Optima EX is a great value, thanks to its refined chassis and upscale cabin. Five powertrains are offered: a 185-hp 2.4-liter or a 245-hp 2.0-liter turbo with a six-speed automatic transmission; a 178-hp 1.6-liter turbo with a seven-speed automatic; a hybrid; and a plug-in hybrid, rated at up to 99 MPGe combined.