See also:

Four wheel drive (4WD)
Engine power can be delivered to all front and rear wheels for maximum traction. 4WD is useful when extra traction is required on road, such as, when driving on slippery, muddy, wet, or snow-cover ...

On the Road
During our seat time in and around Seattle, we test drove an EX with the Fuel Economy Package and an SX version. We found the EX's 5-speed automatic a bit annoying in its rush to get into fifth ...

Interior Refinement
The style makeover continues into the Optima's cabin with expanded electronics melded with refreshed fascia patterns and color schemes. Based on a new platform, the standard audio system features ...