Recalculating the speed of light.

Adaptive Headlights in the BMW M5.

Nighttime driving on twisting roads? An optional extra in the BMW M5, Adaptive Headlights enhance safety considerably. Sensors permanently monitor the speed and steering angle of the front wheels - this data is processed and electromechanical motors angle the cups of the xenon headlights in the direction which best illuminates the course of the road ahead.