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:

    Connecting a specific device
    If more than one device is detected by the vehicle, the device at the top of the list is connected. A different device can be connected by selecting it. 1. "Telephone" 2. "Blueto ...

    General information
    Instructions for voice activation system. To have the available spoken instructions read out loud: ›Voice commands‹ ...

    Manual transmission
    Switching off the engine 1. With the vehicle at a standstill, press the Start/Stop button. 2. Shift into first gear or reverse. 3. Set the parking brake. ...