BMW has made safety a top priority for its X4 and it is having a real impact on the road. The technology in the advanced safety features of the ultra-popular Sports Activity Coupe is designed to assist drivers in staying safe on the nation's highways. Many accidents are caused due to a driver's inability to see approaching traffic in his blind spot. BMW mitigates those occurrences with its powerful blind spot detection technology. If the driver wants to change lanes while another vehicle is approaching the side of his vehicle, this system warns him. It does this by employing signals in his side view mirror and also by vibrating the steering wheel. If the driver drifts out of his lane, the Lane Departure Warning system will also alert him. If the driver cannot brake fast enough to avoid a front-end accident, the Frontal Collision Warning system with collision mitigation will literally step in and do it for him. If the driver is going under 35 mph, this system can detect a potential accident and stop it in its tracks.