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:
Bluetooth audio
At a glance
▷ Music files on external devices such as audio
devices or mobile phones can be played
back via Bluetooth.
Use of a mobile phone as an audio source.
▷ The sound is outpu ...
Steptronic
In addition to fully automatic operation, you can also manually shift with the
Steptronic.
Vehicle parking To prevent the vehicle from rolling, always
select position P and apply the parking brak ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...