See also:

Display in the instrument cluster
The selected speed is displayed in the speedometer. ▷ Green: the system is actively braking the vehicle. ▷ Orange: the system is on standby. ...

BMW 320d EfficientDynamics Edition: state-of-the-art diesel engine makes the new sports sedan the most efficient vehicle in its class
Drivers who don't want to miss out on either dynamic, sporty performance or first-class fuel economy will find the new BMW 320d EfficientDynamics Edition an extremely attractive proposition. As in ...

Tachometer
Always avoid engine speeds in the red warning field. In this range, the fuel supply is interrupted to protect the engine. ...