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:

    Automatic deactivation during forward travel
    The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

    Deleting contacts
    Only contacts that are stored in the vehicle are deleted. The contacts on the mobile phone* cannot be deleted. 1. "Office" 2. "Contacts" 3. Highlight the contact. 4. Open & ...

    Malfunction
    Comfort Access may not function properly if it experiences interference from external sources such as mobile phones, metal objects, overhead power lines, transmission towers, etc. In this case, ...