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:

    Doors
    Automatic soft closing To close the doors, push lightly. It is closed automatically. Danger of pinching Make sure that the closing path of the doors is clear; otherwise, injuries may result. ...

    Reassigning individual programs
    1. Switch on the ignition. 2. Hold the hand-held transmitter a distance of approx. 1 to 3 in/2.5 to 8 cm from the memory buttons. The required distance depends on the manual transmitter. 3. H ...

    Presets
    It is possible to store up to 40 stations. Calling up a station1.  "Radio" 2.  "Presets" 3.  Select the desired station. Storing a station The station currently ...