See also:

USB audio interface/mobile phoneaudio interface
At a glance It is possible to connect external audio devices. Operation can be performed via iDrive. The sound is output on the vehicle loudspeakers. Connectors for external devices ► Con ...

Removing
The head restraints cannot be removed. ...

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 an ...