In addition, the new edition explains new electronically controlled vehicle motion control systems including advanced suspension, electronically controlled electric power steering, 4-wheel steering and electronically controlled electric brakes. The braking systems are part of an integrated motion control system that couples ABS brakes; traction control and variable vehicle dynamics for enhanced stability are also described. The development of hybrid/electric vehicles and their associated electronic control/monitoring systems as well as the new technologies incorporated into conventional gasoline and diesel-fueled engines are also discussed.