The 2021 Audi S4 is brilliantly athletic. The Audi S4 offers more than muscle. It offers thoughtful innovations that show off the brains behind the brawn. Allow your Los Angeles and Orange County Audi dealer to take you on a journey through the 2021 S4's performance, design, technology, and safety features, and prove to you that the 2021 Audi S4 is the sedan for you. 


Our available dynamic quattro® sport rear differential, splits the torque between the wheels of the rear axle, offering thrilling handling on corners. Near-instant reaction times and constantly monitored torque distribution help you stay in control and improve driving dynamics. With sensors that measure the movements of the vehicle body, available sport adaptive damping suspension adjusts automatically to road surface conditions and driving situations, resulting in elevated driving dynamics with enhanced comfort.


The S4 offers a striking exterior design that announces a strong presence on the roads of the Los Angeles and Orange County area, with a dynamic Tornado line, quad exhaust outlets and the kind of dramatic stance that makes your Audi S4 a mirror to your powerful intent on driving. Dramatic performance is defined by great lines. So, while the performance of the Audi S4 turns heads, its lines are what give it shape and deeper meaning when you first take it in.


In terms of the interior of the Audi S4, the ergonomically designed and easily accessed dashboard of the Audi S4 features an all-new touchscreen Audi MMI® interface, standard three-zone climate control and push-button instrumentation. The engineering may be complicated, but the simple truth of the S4 Infotainment system is found with Audi MMI® touch screen capabilities and the crisp, colorful available Audi virtual cockpit display options. An intuitive, integrated 10.1-inch touch display, allows you to access infotainment through haptic feedback and a smartphone-inspired interface with simplified natural voice control.


The Audi S4 surrounds you with safety intelligence with Audi pre sense® basic and city, park assist, Audi adaptive cruise assist with Traffic Jam assist and Turn assist, and a Top view camera system. 

For more information about the 2021 Audi S4, contact us at Walter's Audi serving Los Angeles and Orange County, or schedule a test drive.

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Walter's Audi

3210 Adams St.
Directions Riverside, CA 92504

  • Sales: 951-441-6191
  • Service: 951-441-6192
  • Parts: 951-441-6193


  • Monday 9 AM- 9 PM
  • Tuesday 9 AM- 9 PM
  • Wednesday 9 AM- 9 PM
  • Thursday 9 AM- 9 PM
  • Friday 9 AM- 9 PM
  • Saturday 9 AM- 8 PM
  • Sunday 10 AM - 7 PM