Four Wheel Drive name in 1910. Besserdich and Zachow's patented full time four wheel drive system combined a lockable center differential with double-Y constant velocity universal joints for steering. In modern terms the Battleship would be considered All Wheel Drive as all FWD products featured full-time four wheel drive with a lockable center differential. The success of the four-wheel drive in early military tests prompted the company to switch from cars to trucks. In 1916 the U.S. Army ordered 147 Model B three ton trucks for the Pancho Villa Expedition. The U.S. Army ordered 15,000 FWD Model B three ton trucks as the
Mid-engine, four-wheel-drive layout of torque that can be supplied to the rear wheels before wheelspin occurs. Because the engine is not in the front, the car can be designed with a minimum amount of frontal area perpendicular to the wind, greatly increasing aerodynamic efficiency. A computer-controlled four-wheel-drive differential system allows a car to both accelerate and corner more quickly, since it can vary the amount of torque going to the front and rear wheels, and therefore vary how much the car behaves like a front- or rear-wheel-drive car. This means that through a fast corner the car is able to display more “neutral”