The Audi S4 is a new dimensions of driving with inovations in engine technology and engineering design. This video goes behind the scenes and looks at the key features that make the car perform so well. Ralf Schwarz, head of Chassis Control Systems, takes the car on the track and explains the new features.

More info on the Audi S4 available here: http://boardwalkaudi.com/Dallas-Plano/Dealer/New/Audi/S4/