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:
Changing between panels
After a menu item is selected, e.g., "Radio", a
new panel is displayed. Panels can overlap.
▷ Move the controller to the left.
The current panel is closed and the previous
panel ...
Updating the navigation data
General information
Navigation data are stored in the vehicle and can
be updated.
Current navigation data and the authorization
code are available from your service center.
▷ Depending on ...
Arming and disarming the alarm
system
General information
When you lock or unlock the vehicle, either with
the remote control, Comfort Access or at the
door lock the alarm system is armed or disarmed
at the same time.
Door lock an ...