A 2.7-liter, 170-hp DOHC V6 engine marks the difference between the 2005 Kia Optima LX V6 and its 4-cylinder sibling.  It also comes only with a 4-speed Sportshift automatic.  No manual is offered.  The 2004 Optima LX V6 comes with larger 16-inch alloy wheels, but otherwise is like the 4-cylinder LX.  It comes standard with dual front and side airbags, power windows, locks, and mirrors, cruise control, intermittent wipers, and a tachometer.

ABS brakes are offered as an option on the 2004 Optima LX V6, as is a sporty rear spoiler.  A cassette player is standard, but you can upgrade to a CD player.  The front-wheel drive LX V6 gets 20/27 mpg, a little less than the four-cylinder.  Good handling, power, interior room, and standard safety features make the 2005 Optima LX V6 a popular choice for budget-minded families.  The trunk capacity and headroom could be bigger, say some owners.