Motor vehicle adaptive cruise control devices; electronic controllers for motor vehicle braking; motor vehicle cameras and sensors for detecting and evaluating time-to-collision risk based upon external environmental factors such as road lane and boundary markers, pedestrians, vehicles, freespace, objects outside of the vehicle, and internal driver state monitoring; motor vehicle control systems for applying brake/steering/acceleration to mitigate risk; lane and road departure and crash warning alarm systems for motor vehicles; electronic motor vehicle steering systems for assisting vehicles to continue course on the road, avoid collision with objects and other obstacles on road, and evade collision with other vehicles; electronic motor vehicle throttle systems for applying acceleration; 360-degree collision warning alarm systems for motor vehicles; and structural parts thereof for all the foregoing; all of the foregoing sold as integral components of automobiles