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:
Mobile communication devices in the
vehicle
Mobile communication devices in the vehicle
It is advised that you do not use mobile communication
devices, e.g., mobile phones, inside the
vehicle without connecting them directly to the
exte ...
Issued warning
If you leave the lane and if a lane marking has
been detected, the steering wheel begins vibrating.
If the turn signal is set before changing the lane,
a warning is not issued.
End of warning
T ...
Airbags
The following airbags are located under the marked covers:
1. Front airbags
2. Coupe: head airbags
3. Side airbags in the seat backrests
4. Convertible: knee airbags
Pro ...
