Used 2021 Audi A4 for Sale near Waterloo, IA

## Summary - With 363 currently listed for sale on CarGurus and an **average price of $21,896.00**, 32.0% of 2021 Audi A4s for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2021 Audi A4 4.8 / 5 stars. - **76.3% of 2021 A4 models on CarGurus are accident free.** - The 2021 Audi A4 is notable for its refined interior, advanced technology features, and a range of engine options that enhance performance and efficiency. ## Why it stands out The 2021 Audi A4 remains a formidable contender in the luxury compact sedan segment, renowned for its blend of performance, technology, and comfort. This model year is marked by a sleek redesign that emphasizes Audi's modern styling while incorporating high-end materials throughout the cabin. It shines with its impressive user rating of 4.8 / 5, indicating strong customer satisfaction. Buyers are particularly drawn to the well-equipped features such as the virtual cockpit, MMI infotainment system, and robust safety technologies that enhance the driving experience. Additionally, the optional quattro all-wheel drive adds to its appeal in varying weather conditions, further solidifying its position as a well-rounded choice for discerning drivers. ## Other model years to consider - **[2018 Audi A4](https://www.cargurus.com/Cars/l-Used-2018-Audi-A4-c26836)** - Average price: $15,851.00 - Good/great deal percentage: 30.1% - User rating: 4.67 / 5 - Total listings: 1,110 - **[2017 Audi A4](https://www.cargurus.com/Cars/l-Used-2017-Audi-A4-c25731)** - Average price: $13,630.00 - Good/great deal percentage: 29.8% - User rating: 4.57 / 5 - Total listings: 1,011 - **[2016 Audi A4](https://www.cargurus.com/Cars/l-Used-2016-Audi-A4-c24886)** - Average price: $11,885.00 - Good/great deal percentage: 29.6% - User rating: 4.8 / 5 - Total listings: 790 This analysis is based on CarGurus' proprietary market data from February 19, 2026, CarGurus experts' opinions, and generative AI.