Subaru AWD variation V-T-D AWD (Variable torque distribution electronic control AWD) V-T-D AWD is an AWD system for automatic transmission vehicles that provides positive, sporty driving by making improvements in turning-in while maintaining the basic driving safety performance of Subaru AWD. The system uses complex planetary gear type centre differentials that distribute the basic torque at a ratio of 35 for the front wheels and 65 for the rear. Distributing more torque to the rear wheels reduces the tendency to understeer when accelerating while cornering to provide smoother, more confident handling. Torque distribution is also optimally controlled to suit road conditions. This system provides both sporty driving and stability under any road conditions by automatically equalizing the front and rear wheel torque distribution to a maximum ratio of 50:50.

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