The BMW 5 Series Gran Turismo supports drivers discreetly when vehicles approach quickly from behind or are positioned in blind angles. A triangular symbol on the base of the exterior mirror and steering wheel vibrations draw the driver's attention on the vehicle close by. With the Lane Departure Warning system, the camera installed near the interior mirror on the windscreen monitors road markings and their position versus the car as well as the edge of the road or lane. The system is activated whenever the vehicle leaves its current lane unintentionally and also alerts the driver by making the steering wheel vibrate. Using the indicator deactivates the Lane Change or Departure Warning. Built-in collision warning serves as an attentive driving assistant and offers added safety: in a two-step process, it warns the driver of a possible collision if a vehicle ahead of him brakes suddenly. Lane Change and Departure Warning including camera-based Collision Warning are technologies from BMW ConnectedDrive.