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:

    Updating the navigation data
    General information Navigation data are stored in the vehicle and can be updated. Current navigation data and the authorization code are available from your service center. ► Depending ...

    Calling Customer Relations
    Vehicle not equipped with BMW Assist or TeleService 1. "BMW Assist" or "ConnectedDrive" 2. "Customer Relations" The Customer Relations phone number is displayed. If ...

    Notes
    Shatter-proof containers and no hot drinks Use light and shatter-proof containers and do not transport hot drinks. Otherwise, there is the increased danger of injury in an accident. Unsuit ...