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:

    Navigation
    General information Map Split screen settings Destination guidance with intermediate destinations ...

    Adjusting
    Mechanical Mechanical 1. Fold the lever down. 2. Move the steering wheel to the preferred height and angle to suit your seating position. 3. Fold the lever back. Do not use force to swing t ...

    Filtering traffic bulletins
    You can set which traffic bulletins appear on the map. 1. "Navigation" 2. "Map" 3. Open "Options". 4. "Traffic Info categories" 5. Select the desired cat ...