Used 2018 Audi S4 for Sale near Illinois

## Summary - With 136 currently listed for sale on CarGurus and an **average price of $22,975.00**, 23.5% of 2018 Audi S4s for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2018 Audi S4 4.67 / 5 stars. - **66.9% of 2018 Audi S4 models on CarGurus are accident free**. ## Why it stands out The 2018 Audi S4 represents a continuation of Audi's commitment to performance and luxury in the compact segment. Powered by a 3.0-liter twin-scroll turbocharged V6 engine delivering 354 horsepower and 369 lb-ft of torque, the S4 is appreciated for its powerful acceleration combined with standard Quattro all-wheel drive, enhancing its overall driving dynamics. This year also includes commendable features such as the reconfigurable Virtual Cockpit, ensuring that drivers have both an engaging and technologically advanced experience. Its blend of performance, luxury, and safety features makes the 2018 S4 a compelling choice for buyers looking for a versatile sports sedan. ## Other model years to consider - **[2023 Audi S4](https://www.cargurus.com/Cars/l-Used-2023-Audi-S4-c32242)** - Average price: $43,551.00 - Good/great deal percentage: 24.1% - Total listings: 137 - **[2021 Audi S4](https://www.cargurus.com/Cars/l-Used-2021-Audi-S4-c29817)** - Average price: Not available - Good/great deal percentage: Not available - Total listings: Not available This analysis is based on CarGurus' proprietary market data from February 19, 2026, CarGurus experts' opinions, and generative AI.