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:
Antilock Brake System ABS
ABS prevents locking of the wheels during braking.
The vehicle remains steerable even during full
brake applications, thus increasing active
safety.
ABS is operational every time you start the e ...
Note
Children in the vehicle
Do not leave children unattended in the
vehicle; otherwise, they could endanger themselves
and other persons, e.g., by opening the
doors. ...
Bluetooth audio
Overview> It is possible to use Bluetooth to play music files from external devices,
e.g. audio devices or mobile phones.
Using a mobile phone as an audio source.
> Bluetooth® is a registere ...