Summary

• With 41 currently listed for sale near Boston, MA and an average price of $21,518.00, 41.5% of 2021 Audi A4s for sale on CarGurus are rated as good or great deals.

• Favorably reviewed: Owners rated the 2021 Audi A4 4.75 / 5 stars.

• 100.0% of 2021 A4 models on CarGurus are accident free.

Why it stands out

The 2021 Audi A4 is a standout in the compact luxury sedan market, offering a compelling blend of performance, technology, and comfort. Having evolved over several generations, this model boasts a turbocharged 2.0-liter engine that balances power and efficiency, appealing to driving enthusiasts and those seeking a refined daily commuter. The A4 is also equipped with Audi's renowned quattro all-wheel drive, enhancing traction and performance in various driving conditions.

One of the most notable updates for the 2021 model is the introduction of a mild-hybrid system that elevates the engine's output to 261 horsepower, along with improved fuel efficiency. The interior is plush and driver-focused, featuring Audi's cutting-edge Virtual Cockpit display that replaces traditional gauges with a customizable digital instrument cluster. This integration of technology, coupled with its sleek design and a 100% accident-free record, contributes to the A4's solid reputation among luxury sedans.

Other model years to consider

• 2018 Audi A4

  • Average price: $17,072.00
  • Good/great deal percentage: 33.8%
  • User rating: 5 / 5
  • Total listings: 136

• 2016 Audi A4

  • Average price: $12,354.00
  • Good/great deal percentage: 28.3%
  • User rating: 5 / 5
  • Total listings: 113

• 2017 Audi A4

  • Average price: $14,686.00
  • Good/great deal percentage: 32.3%
  • User rating: 4.47 / 5
  • Total listings: 127

This analysis is based on CarGurus' proprietary market data from May 5, 2026, CarGurus experts' opinions, and generative AI.