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:

    Calling up settings
    Do not retrieve the memory while driving Do not retrieve the memory setting while driving, as an unexpected movement of the seat or steering wheel could result in an accident. Comfort function ...

    Example: setting the clock
    Setting the clock 1. Press the button. The main menu is displayed. 2. Turn the controller until "Settings" is highlighted, and then press the controller. 3. If necessary, move the ...

    Opening and closing: From inside
    This button serves to unlock or lock doors and the trunk lid, but does not activate the anti-theft system. The fuel filler flap remains unlocked. Automatic lockingYou can also set the situations ...