Kia has introduced the 2013 Optima Hybrid which benefits from a number of improvements to its passenger compartment and drivetrain.
Like the 2013 Hyundai Sonata Hybrid, the Optima Hybrid has a stronger Hybrid Starter Generator, an upgraded lithium polymer battery and a more powerful electric motor that develops 47 bhp (35 kW). These changes enable the model to have a combined output of 199 bhp (148 kW) and 235 lb-ft (318 Nm) of torque, compared to the previous 206 bhp (154 kW) and 195 lb-ft (264 Nm) of torque. The model also an improved fuel economy rating of up to 36 mpg city / 40 mpg highway / 38 mpg combined (US).
Besides the powertrain upgrades, the Optima Hybrid has restyled alloy wheels, aluminum suspension components, a reduced ride height, improved underbody aerodynamics and a rear spoiler. There's also additional trunk space as well as a new EX variant that adds a panoramic sunroof, heated and ventilated front seats, GPS navigation and an eight-speaker Infinity audio system.