This distinctive STaSIS-modified 2012 Audi S4 features a unique Challenge Edition package, comprising revised ECU tuning, an exhaust system, 20" wheels, Öhlins coilover suspension, Alcon front brake calipers, and a high-bias Torsen center differential. Additionally, it includes upgrades from 034Motorsport such as drivetrain mounts, a subframe brace, and a stage 3 JHM R Performance clutch, making this S4 stand out with its enhanced performance capabilities, all originally manufactured in 2012.