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:

    Label
    Run-flat tires RSC label on the tire sidewall. The wheels are composed of special rims and tires that are self-supporting, to a limited degree. The support of the sidewall allows the tire to re ...

    Operating from the outside
    ▷ Via the remote control. ▷ Via the door handles of the driver's and front passenger doors. The following takes place simultaneously when locking/unlocking the vehicle via the remote ...

    Automatic Service Request
    The TeleService data necessary for servicing the vehicle are automatically sent to your service partner prior to the service deadline. If possible, the service partner will contact you and a servic ...