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:

    General information
    Lamps and bulbs make an essential contribution to vehicle safety. The manufacturer of the vehicle recommends that you entrust corresponding procedures to the service center if you are unfamiliar ...

    Resetting values
    The average fuel consumption and average speed can be reset. Press and hold the computer button on the turn signal lever. ...

    Route
    Different views of the route are available during destination guidance: ► Arrow view in the instrument cluster and on the Control Display. ► List of route sections. ► Map view. ...