A main contributor to the predictable handling of the Mazda CX9 is its Active Torque-Split All-Wheel Drive system that provides traction in all road situations. Based on the system used by the Mazda CX-7; it monitors road conditions, ABS/DSC operating conditions, wheel speed and engine operation to optimise torque between the front and rear wheels (between 100:0 and 50:50). Depending on these factors, the system automatically selects snow mode or normal mode, and torque is distributed to the front and rear wheels by the coupling unit for optimised traction.