See also:

Measurement
Measurements are made by ultrasound sensors in the bumpers. The range is approx. 6 ft/2 m. An acoustic warning is first given: ▷ By the front sensors and two rear corner sensors at approx ...

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 ...

Capturing the image
The image is captured by two cameras integrated in the exterior mirrors and by the backup camera. The range is at least 7 ft/2 m to the side and rear. In this way, obstacles up to the height of ...