VCD

Learn how the VCD (Viscous Center Differential) controls power distribution to front wheels in Gran Turismo 3: A-Spec, especially during slip.

The VCD controls the distribution of engine power to the front wheels. For example, if your engine produces 400 horsepower (hp) and the VCD is set to 50%, then 200 hp will be directed to the front wheels, and 200 hp will push from the rear. In most four-wheel drive (4WD) cars, the VCD is a variable system. This means that under normal conditions, the car would route most, if not all, of its power through the rear tires. However, if slip is detected, up to 50% of the available power can be sent to the front wheels.