The concept
The system issues a two-phase warning of a danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation.
The collision warning is available even if cruise control has been deactivated.

It responds to stationary or moving objects that are within the detection range of the radar system.
When the vehicle is intentionally brought into contact with a vehicle, the collision warning is delayed to avoid false warnings.
See also:
5 Series Gran Turismo
For 2010, BMW added a hatchback version of its rear-wheel-drive 5 Series,
dubbed the 5 Series Gran Turismo, starting with a 550i "GT" powered by the same
400-hp, twin-turbo V-8 as the 55 ...
Crunching the Numbers
Prices for the X5 start at $47,500 for the xDrive30i; the diesel costs
$51,200 and the lineup peaks at the $56,200 xDrive48i. Standard features include
faux leather upholstery, power front seats, ...
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
