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:

    Compatibility
    If this symbol is printed on the packaging or in the instructions of the hand-held transmitter, the remote-controlled device is generally compatible with the universal remote control. If y ...

    Bluetooth audio
    At a glance ▷ Music files on external devices such as audio devices or mobile phones can be played back via Bluetooth. Use of a mobile phone as an audio source ▷ The sound is output ...

    Changing wheels
    Notes The vehicle equipment does not include a spare tire. When using run-flat tires or tire sealants, a tire does not need to be changed immediately in the event of pressure loss due to a fla ...