A short video showing how the EDL / ESP / ASR / Traction Control / and quattro TORSEN AWD systems work together to shift torque and gain traction in deep snow. You can clearly see how power is divided between all 4 wheels and constantly shifted to the wheel with the most grip. How quattro works. quattro grip! Keywords: B5 Audi S4 Stage 3 III VAST Frankenturbos K04 Hybrid Launch Donut Snow Drift Stuck Crash ABS ESP Traction Control Stuck Wheelspin Burnout Haldex Torsen Car is equipped with Dunlop Wintersport 3D snow tires. Less