The S4 is available in three trims, but all come with a 3.0-liter turbocharged V6 that produces 349 hp and 369 lb-ft of torque. An eight-speed automatic transmission handles outputs to all four corners.
Each model comes with heated and massaging 12-way power front seats, as well as leather and Alcantara upholstery. Other standard features include LED headlights, lane departure warning, and a 10.1-inch touchscreen infotainment display paired with a ten-speaker sound system. As you climb the trims, more is added, with a 19-speaker Bang & Olufsen audio setup, SiriusXM satellite radio, and navigation, among the notable additions. Also available are amenities like wireless charging, a head-up display, keyless entry, and adaptive dampers with a sport rear differential for even more impressive handling on tight and twisty roads.
Various additional packages are available for the S4. Only one decent package is available on the base model, and it's the Convenience Package for $2,500. This equips advanced keyless entry, memory for the driver's seat, Audi side assist with rear pre sense, adaptive cruise control, SiriusXM satellite radio, a heated steering wheel, front and rear parking sensors, and auto-dimming exterior mirrors. Available on the mid-level and top trims is the S sport package for $2,500. This adds red brake calipers, adaptive sport suspension, and a quattro sport rear differential. The Warm Weather Package, at $700, is also worth considering, adding full-leather ventilated front sport seats (but losing the massaging function and Alcantara) and rear sunshades for the side windows. The Black Optic Plus Package is available on the top two trims and equips 19-inch titanium-finish alloy wheels and blacked-out exterior trim. It goes for $1,000. The Navigation Package costs $1,500 extra, and dynamic steering will set you back $1,150.