The 2008 Kia Optima is largely unchanged. Optima shares its basic design with the Sonata produced by Kia's corporate parent, Hyundai. Optima comes in LX and uplevel EX models with a choice of a 162-horsepower 2.4-liter 4-cylinder engine or a 185-horsepower 2.7-liter V6. A 5-speed manual transmission is standard on the 4-cylinder LX. A 5-speed automatic is optional for that model and is standard otherwise. Available safety equipment includes ABS, traction control, antiskid system, front side airbags, and curtain side airbags. Leather upholstery is standard on EXs. Options include heated seats, sunroof, and power-adjustable pedals.