Under the Hood

The 640i is powered by a 315-horsepower, turbocharged 3.0-liter six-cylinder engine. Its peak torque rating is 332 pounds-feet. BMW cites a zero to 60 mph time of 5.5 seconds for both the coupe and convertible. The standard eight-speed automatic transmission includes steering-wheel-mounted shift paddles.

Other standard features include computer-controlled adaptive shock absorbers and Driving Dynamics Control, which allows the driver to adjust the ride quality, accelerator response, power-steering assist level and automatic transmission behavior.

Optional mechanical upgrades include active stabilizer bars and active steering, the latter of which adds rear-wheel steering to the earlier generation's variable-ratio front steering system.

    See also:

    Climate control functions in detail
    Note is continuously shown on the display of the automatic climate control. Manual air distribution Press the button repeatedly to select a program: ▷ Upper body region. ▷ U ...

    Adjusting the height: manual head restraints
    The height of the outer head restraints can be adjusted. To raise: pull. To lower: press the button, arrow 1, and push the head restraint down. ...

    Video playback
    Country codes Only DVDs with the code of the home region can be played back; also refer to the information on the DVD. Playback The video image is displayed on the front Control Display up ...