See also:

ISG (Idle Stop & Go) available for three engines
In addition to using the latest technologies to enhance the efficiencies of each engine, Kia is offering its fuel-stretching ISG (Idle Stop & Go) system - which automatically switches off and ...

POWER AND FUEL-ECONOMY ARE UP TO PAR
That description might have you thinking the Optima has all sorts of power. True, the upgraded 2.4-liter four-cylinder gets added power for ’09 with 175hp and 169 ft-lbs of torque, but it’s no ...

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