http://www.concordmitsubishi.com 888-834-2140 The S-AWC system, which regulates torque and braking at each wheel includes a bevy of acronyms: ASC (Active Stability Control), ACD (Active Center Differential), AYC (Active Yaw Control) and Sport ABS, an ABS system designed for aggressive driving. The biggest difference over the outgoing car is the large number of yaw sensors included in the system, all designed to keep the Evo X on its intended path. The S-AWC system can be set for three different road surfaces: tarmac (standard), ice and gravel