Paradoxically, the introduction of a four wheel drive system on a GT Maranello has gone completely into the background, eclipsed by the words costs around shooting-brake lines from the FF. But for lovers of technology revolution is under her dress in it. Traction 4 × 4 Ferrari promises to school among other manufacturers as regards weight and speed of torque distribution.
Let's see how it works. The 4WD system does not disturb the balance of the FF mass distribution: a configuration engine / transmission transaxle, 53% of the load imposed on the rear axle. The heart of this mechanism is the 4 × 4 "Power Transfer Unit (PTU), a differential transfer case with electronic function of torque (torque vectoring), installed at the front.
The PTU is directly connected to the crankshaft through a system of gears, a sophisticated hydraulic control device allows a time of activation (defined as the transfer rate of torque between the front wheels) 30% less than competing systems, which provides almost instantaneous restart operations.
The torque split front axle by means of two separate parcels of clutches mounted within the PTU. The 4WD is fully integrated with electronic control systems of vehicles, the transmission with F1-Trac and rear differential E-Diff (who thinks the proper distribution of torque between the rear wheels).
The compactness of the system, ensures that the 4 × 4 Ferrari weighs less than 50% compared to the competition as well as less power dissipation throughout the drive train because of the almost direct connection between engine and PTU. 
Let's see how it works. The 4WD system does not disturb the balance of the FF mass distribution: a configuration engine / transmission transaxle, 53% of the load imposed on the rear axle. The heart of this mechanism is the 4 × 4 "Power Transfer Unit (PTU), a differential transfer case with electronic function of torque (torque vectoring), installed at the front.
The PTU is directly connected to the crankshaft through a system of gears, a sophisticated hydraulic control device allows a time of activation (defined as the transfer rate of torque between the front wheels) 30% less than competing systems, which provides almost instantaneous restart operations.
The torque split front axle by means of two separate parcels of clutches mounted within the PTU. The 4WD is fully integrated with electronic control systems of vehicles, the transmission with F1-Trac and rear differential E-Diff (who thinks the proper distribution of torque between the rear wheels).
The compactness of the system, ensures that the 4 × 4 Ferrari weighs less than 50% compared to the competition as well as less power dissipation throughout the drive train because of the almost direct connection between engine and PTU.
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