Used 2018 Kia Optima Sedan Trims Comparison

Under the hood of the front-wheel-drive Optima in its base LX form is a 2.4-liter four-cylinder engine (185 horsepower, 178 pound-feet of torque) matched to a six-speed automatic transmission. Standard features include 16-inch alloy wheels, automatic headlights, heated mirrors, remote locking and unlocking, cruise control, a driver information display, a tilt-and-telescoping steering wheel, height-adjustable front seats (with two-way power lumbar adjustment for the driver) and a 60/40-split rear seat.

Also standard for the LX are Bluetooth, a 7-inch touchscreen and a six-speaker audio system with a USB port, Apple CarPlay, Android Auto and HD and satellite radio. Standard advanced safety equipment includes a rearview camera, rear parking sensors, and blind-spot monitoring with rear cross-traffic alert.

The optional Convenience package adds noise-reducing front window glass and a 10-way power-adjustable driver seat (with two-way power lumbar).

Stepping up to the LX 1.6T adds a turbocharged 1.6-liter four-cylinder engine (178 hp, 195 lb-ft) paired to a seven-speed, dual-clutch automatic transmission. This powertrain is unique to the LX 1.6T. Additional features include unique wheels, the contents of the Convenience package, and a leather-wrapped steering wheel and shift knob.

The S combines the features of the LX 1.6T with the engine and transmission of the LX. You also get 17-inch wheels, foglights, LED taillights, a rear spoiler, and cloth and leather upholstery. The optional Panoramic Sunroof package includes a panoramic sunroof and gloss black exterior accents, with the Panoramic Sport package consisting of these features, plus 18-inch wheels and larger front brakes.

The EX does without the foglights and spoiler, but it adds LED daytime running lights, power-folding mirrors, illuminated door handles, keyless entry and ignition, a hands-free unlocking trunk, dual-zone automatic climate control, rear air vents, heated front seats, four-way power lumbar for the driver, driver-seat memory settings, interior chrome accents, leather upholstery and two charge-only rear USB ports.

Two packages are available on the EX. The Premium package adds an auto-dimming rearview mirror, a 10-way passenger seat (with two-way power lumbar), ventilated front seats and the panoramic sunroof. The Technology package builds on top of the Premium pack with a sport body kit, LED foglights, larger front brakes, an electronic parking brake, adaptive cruise control, an 8-inch touchscreen, navigation and a 10-speaker Harman Kardon audio system. A lane departure warning system and forward collision warning with automatic emergency braking are also included.

The range-topping SX is powered by a turbocharged 2.0-liter four-cylinder engine (245 hp, 260 lb-ft). It is equipped similarly to the EX with Premium package, with upgrades that include 18-inch wheels, adaptive LED headlights, LED foglights, a rear spoiler, dual exhaust tips, a sport-tuned suspension, a flat-bottom steering wheel with wheel-mounted shift paddles, and a larger driver information display. It also adds a temporary spare tire compared to the tire repair kit on other trims.

The SX is available with a Technology package that closely mirrors the EX's Technology package, but it also includes automatic high-beam control. Selecting this package opens the door to the Limited package, which adds chrome wheels and exterior trim, a premium headliner, a heated steering wheel, heated rear seats, upgraded leather upholstery, rear window sunshades and a 360-degree parking camera system.