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:
Switching the system on/off
Press the left or right side of
the button
on the CD/DVD player in the rear for the
respective page.
Rear entertainment and screens are switched
on/off.
After switching off the ignition, th ...
Capturing the image
The image is captured by two cameras
integrated in the exterior mirrors and by the
backup camera.
The range is at least 7 ft/2 m to the side and rear.
In this way, obstacles up to the height of ...
Activating assistance functions
Several assistance functions can be active at the
same time.
Showing the parking aid lines
"Parking aid lines"
Pathway and turning lines are displayed.
Showing the obstacle marking
...