Used Audi A4 for Sale near Petaluma, CA

## Summary - With 1,089 currently listed for sale on CarGurus and an **average price of $15,907.00**, 35.2% of 2018 Audi A4s for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2018 Audi A4 4.67 / 5 stars. - **59.5% of 2018 A4 models on CarGurus are accident free**. - The 2018 Audi A4 comes equipped with a user-friendly infotainment system and a robust engine lineup, striking a commendable balance between performance and luxury. ## Why it stands out The 2018 Audi A4 is distinguished by its perfect blend of luxury and technology, making it a popular choice among buyers seeking a premium compact sedan. Notable features include an intuitive MMI infotainment system, which enhances connectivity with Apple CarPlay and Android Auto. Additionally, the A4 offers a choice of two turbocharged engines, providing both efficiency and spirited performance. The introduction of the Virtual Cockpit—a fully digital instrument display—adds a modern touch that set it apart in the competitive sedan market. With a reputation for refined handling and a comfortable interior, the 2018 Audi A4 appeals to those looking for a sporty yet sophisticated driving experience. ## Other model years to consider - **[2017 Audi A4](https://www.cargurus.com/Cars/l-Used-2017-Audi-A4-c25731)** - Average price: $13,618.00 - Good/great deal percentage: 34.2% - User rating: 4.57 / 5 - Total listings: 996 - **[2016 Audi A4](https://www.cargurus.com/Cars/l-Used-2016-Audi-A4-c24886)** - Average price: $11,850.00 - Good/great deal percentage: 32.8% - User rating: 4.8 / 5 - Total listings: 757 - **[2019 Audi A4](https://www.cargurus.com/Cars/l-Used-2019-Audi-A4-c28519)** - Average price: $17,914.00 - Good/great deal percentage: 38.1% - User rating: 4.71 / 5 - Total listings: 695 These recommendations are based on CarGurus' proprietary market data from February 17, 2026, CarGurus experts' opinions, and generative AI.