See also:

Brake system
Power brakes Your vehicle has power-assisted brakes that adjust automatically through normal usage. In the event that the power-assisted brakes lose power because of a stalled engine or some oth ...

Powertrains and Performance
The standard engine on the LX is a 2.0-liter, inline four-cylinder engine. It generates 140 horsepower and 136 pound-feet of torque and is mated to either a five-speed manual transmission or a fou ...

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 ...