Lexus ATC vs. Audi Quattro vs. Acura SH-AWD

AWD comparison test at AET (Automotive Enviro Testing) in Baudette, Minnesota. Audi's Q7 Quattro (TORSEN Torque-Sensing AWD) versus Lexus RX350 ATC (Active Torque Control AWD) versus Acura's MDX SH-AWD (Super-Handling AWD).