The base model in the S4 lineup is what lesser brands may consider fully loaded, coming from the factory with advanced safety equipment like a forward-collision warning with autonomous braking and post-collision braking. Also included are luxury features like tri-zone climate control and power-adjustable front seats with both heating elements and massaging functions. Ambient lighting, a 10.1-inch infotainment touchscreen display, and all the usual additions like Apple CarPlay, Android Auto, and HD Radio are included. However, SiriusXM costs extra as part of a package unless you upgrade to a higher trim.
All-Weather Floor Mats, Cargo Mat (PIO)
Carbon Fiber Spoiler, Carbon Fiber Mirror Caps (PIO)
Audi Side Assist w/Pre Sense Rear, Alarm System w/Motion Sensors, SiriusXM All Access Service, 3 month trial subscription, Driver's Seat Memory, Auto-Dimming Exterior Mirrors, Audi Advanced Key, keyless engine start/stop and entry - doors and trunk