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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    Possible commands
    Most menu items on the Control Display can be voiced as commands. The available commands depend on which menu is currently displayed on the Control Display. There are short commands for function ...

    Information in detail
    Range Displays the estimated cruising range available with the remaining fuel. It is calculated based on your driving style over the last 20 miles/30 km. If there is only enough fuel left for l ...

    Opening/closing the sliding visor
    ▷ Press the switch in the desired direction to the resistance point and hold it there. The sliding visor moves while the switch is being held. ▷ Press the switch in the desired ...