For your own safety

See also:

BMW X5 xDrive50i: BMW's Twin-Turbocharged V-8.
The new BMW X5 xDrive50i takes its place as the flagship of the X5 family, yielding 400 horsepower at 5,500 rpm and 450 lb-ft of torque at 1,750 - 4,500 rpm from its twin-turbocharged 4.4 liter V- ...

Tachometer
Never force the engine speed up into the red warning field, see arrow. In this range, the fuel supply is interrupted to protect the engine. ...

Display
The collision warning can be issued in the instrument cluster, in the Head-up Display*, and acoustically. Instrument cluster The vehicle lights up in red: prewarning The vehicle flashes red ...