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.

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    External devices
    General information External audio and video devices and digital cameras can be connected to cinch sockets, on the CD/DVD player. Operation takes place on the external device. Due to the large n ...

    Destination entry by map
    Selecting the destination 1. "Navigation" 2. "Map" The current position of the vehicle is indicated on the map. 3. "Interactive map" 4. Select the destination w ...

    Swapping the telephone and additional telephone
    The function of the telephone and additional telephone can be swapped automatically. 1. "Telephone" 2. "Bluetooth® (phone)" 3. "Swap phone/addit. phone" ...