Used 2018 Audi S4 for Sale near Iowa

## Summary - With 148 currently listed for sale and an **average price of $23,651.00**, 28.4% 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. - **68.2% of 2018 Audi S4 models on CarGurus are accident-free**. - The 2018 Audi S4 features a 3.0-liter twin-scroll turbocharged V6 engine delivering a robust 354 horsepower, standard all-wheel drive, and a luxurious interior equipped with high-tech features. ## Why it stands out The 2018 Audi S4 distinguishes itself in the luxury sports sedan market with its combination of performance, all-wheel drive capabilities, and premium features. Sporting a powerful 3.0-liter V6 engine that produces 354 horsepower, it offers exhilarating acceleration and responsive handling, all while maintaining the comfort expected from an Audi. The S4 is built on the same platform as the A4, yet it injects ample thrills into everyday driving, thanks to its Quattro all-wheel drive system that provides superior traction in various driving conditions. The opulent interior of the S4 is another strong point, featuring high-quality materials and modern technology, including the reconfigurable Virtual Cockpit and an impressive infotainment system. Despite its capabilities, some may find it lacks the excitement of competing models from BMW and Mercedes-Benz, but its blend of power, luxury, and practicality makes it a compelling choice for buyers seeking a sporty yet comfortable vehicle. ## Other model years to consider - **[2019 Audi S4](https://www.cargurus.com/Cars/l-Used-2019-Audi-S4-c28513)** - Average price: $28,746.00 - Good/great deal percentage: 27.9% - User rating: 4.67 / 5 - Total listings: 165 - **[2023 Audi S4](https://www.cargurus.com/Cars/l-Used-2023-Audi-S4-c32242)** - Average price: $43,494.00 - Good/great deal percentage: 30.8% - Total listings: 130 This analysis is based on CarGurus' proprietary market data from March 16, 2026, CarGurus experts' opinions, and generative AI.