See also:

Closing the windows and glass sunroof/panoramic glass sunroof
Driving with the glass sunroof/panoramic glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

One lever for all functions
One lever for all functions 1 Storing and maintaining speed or accelerating 2 Storing and maintaining speed or decelerating 3 Interrupting and deactivating the system 4 Resuming a speed stored b ...

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 ...