Toyota recently used such a system to give the RAV4 Hybrid and Prius all-wheel drive. As a final party trick, ZF's axle can be combined with ZF's AKC (Active Kinematics Control) rear steering.

Like other rear-axle steering systems found in some city buses and off-road equipment in the United States, the Servocom RAS-EC is applied to one of two rear axles on a standard vehicle, in this ...