Under the Hood

The base engine in the Regal is a 2.4-liter four-cylinder that makes 182 horsepower. Buyers looking for more power can select the optional turbocharged 2.0-liter four-cylinder that's rated at 220 hp. The engines work with a six-speed automatic transmission to power the front wheels, and sedans with the turbo engine will also offer a six-speed manual gearbox.

Regals with the turbo engine can have Buick's Interactive Drive Control System, which equips the car with an adaptive suspension that automatically tailors itself to road conditions and driver behavior. IDCS includes three modes — Normal, Tour and Sport — that vary the response of the suspension, gas pedal, automatic transmission and steering system.

    See also:

    Setting the Tone(Bass/Midrange/Treble)
    AUDIO: Push and release the AUDIO knob until BASS, MID (midrange) (without Bose®), or TREB (treble) displays. Turn the knob to increase or to decrease the tone. The display shows the bass, midran ...

    Battery
    Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview  for battery location. DANGER Battery posts, terminals, and r ...

    The Inside
    Like the pricier CTS sedan from sister brand Cadillac, the LaCrosse's dashboard is trimmed in a leather-like material with stitched seams and padded finishes. Ambient lighting pipes across the das ...