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:

    Closing
    Danger of pinching Monitor the closing process and make sure that the closing path of the window is clear; otherwise, injuries may result.◀ ▷ Pull the switch to the resistance p ...

    Engine data
    ...

    Destination guidance with trafficbulletins
    General information Detour suggestions from the navigation system can be manually accepted in the semi-dynamic destination guidance. In the dynamic destination guidance, they are automatically acc ...