The 2010 Kia Optima EX shares interior and exterior features with the base LX trim and makes a few upgrades and changes. The EX shares an engine with the LX (a 175-horsepower I4), but comes standard with a five-speed electronically controlled automatic transmission and gets 22 city/32 highway mpg.
The EX's interior additions include air conditioning with automatic temperature control, an eight-way power-adjustable driver’s seat with lumbar support, a trip computer, auto-dimming rearview mirror with HomeLink and compass, leather seat trim, and leather-wrapped steering wheel and shift knob. The exterior adds alloy wheels with 205/60R16 tires, chrome door handles, and foglights.
The 2010 Kia Optima EX V6 is nearly identical to the Optima EX trim with the I4 engine, but the EX V6 is powered by, naturally, a V6 that produces 194 horsepower and 184 lb-ft of torque, is mated to a five-speed electronically controlled automatic transmission, and gets 20 city/28 highway mpg. The exterior is also the same as the EX's, with the one exception of dual exhaust for the EX V6.
The 2010 Kia Optima LX serves as the base trim for this four-door sedan model line. The LX is powered by an inline four-cylinder engine (175 horsepower, 169 lb-ft of torque) that’s paired with a five-speed manual transmission with overdrive and gets 22 city/32 highway mpg. A five-speed automatic transmission is available.
The LX's interior features include air conditioning, cruise control with steering-wheel-mounted controls, power windows with one-touch down, power locks, keyless entry, a tilt/telescoping steering wheel, a 60/40-split rear seat, and a six-speaker AM/FM/CD/MP3/SIRIUS audio system with USB/auxiliary input jack and steering-wheel-mounted controls. Exterior highlights include steel wheels with 205/60R16 tires, a chrome front grille, body-color door handles and side moldings, and clear lens projection headlights.
The 2010 Kia Optima SX shares drivetrain, interior, and exterior features with the EX trim with some significant and sporty upgrades.
The SX's interior additions feature paddle shifters, supervision instrumentation, sport-cloth/leather seat trim, smart key and push-button start, aluminum interior trim, and metal pedals. The exterior gets hyper silver finished alloy wheels with 215/50R17 tires, a black-mesh front grille, and blacked-out projection headlights.
The 2010 Kia Optima SX V6 shares all the interior features of the SX trim and nearly all the exterior features, although the SX V6 adds dual exhaust. The main difference is under the hood, where the SX V6 gets a 194-horsepower V6 (184 lb-ft of torque) mated to a five-speed electronically controlled automatic transmission that gets 20 city/28 highway mpg.