The 2018 Audi S4 is the performance variant of the A4 sedan ... a 7.0-inch instrument cluster display, a 19-speaker Bang & Olufsen audio system, Bluetooth, Android Auto and Apple CarPlay ...

The 2018 Audi S4 3.0 TFSI Quattro Progressiv Vehicle is equipped with a 10-speaker audio system and features a 8.3-inch, Colour display with voice-activating capabilities for Audio, Phone ...