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:

    Wiper blade replacement
    Do not fold down the wipers without wiper blades Do not fold down the wipers if wiper blades have not been installed; this may damage the windshield. Replacing the wiper blades 1. To change th ...

    Clothes hooks
    The clothes hooks are located in the grab handles in the rear. Do not obstruct view When suspending clothing from the hooks, ensure that it will not obstruct the driver's vision. No heavy o ...

    Selecting menu items
    Menu items shown in white can be selected. 1. Turn the controller until the desired menu item is highlighted. 2. Press the controller. Menu items in the Owner's Manual In the Owner's Manual, m ...